Hi, and welcome!
I'm 45 years old and FtM trans - and I've been transitioning since 2012.

So... on to your questions:
Quote from: PixelatedMess on December 21, 2016, 01:33:02 PM
- The pain of the surgeries
What surgeries? What pain? You don't need to have any surgery at all, and we do have painkillers these days.

Transitioning is a very personal journey, and we each do as much or as little as we need to do to feel comfortable. You don't have to have every possible operation, and you don't do it all at once. It'll take you years to go through the various stages of transition, and in that time you can either save up or get a loan to cover the vital stuff, and wait a few more years for the less important stuff. Did you know that most trans men never have bottom surgery?
Quote from: PixelatedMess on December 21, 2016, 01:33:02 PM
- I'm not rich, I'd have to work LONG HOURS to pay for the surgeries
Who is rich around here? Most of us aren't - in fact, many of us live on or below the breadline. So we do what we can and we save up for the rest. If it's important to you, you'll earn the cash you need. Transitioning is a marathon - not a sprint.
Quote from: PixelatedMess on December 21, 2016, 01:33:02 PM
- I'm only 5.2 ft tall which is SHORT for a guy
So am I, and it didn't stop me. I'd love to be taller, but I'm simply not going to be so I might as well accept it. And if you look around you, you'll see there are guys around your height. That's not stopping them from being men, so why should it stop you? Anyway... you're the same height as Prince. It didn't stop him from being a man and a total legend who influenced generations of musicians, did it?

Quote from: PixelatedMess on December 21, 2016, 01:33:02 PM
- Parts of my family are transphobic (I Think) and I'm sure coming out to them will be horrendous.
Mine are too. But you know what? I don't regret it for a second, and their behaviour reflects very badly on them... not on me! The most important thing is safety. Keep an eye on yourself and try to come out to your most supportive family members first - and ask them to support you with the nastier sides of your family.
Quote from: PixelatedMess on December 21, 2016, 01:33:02 PM
- I want to be a YouTuber.
Great! But for every well-known YouTuber out there, there are tens of thousands of people who never get famous. Who knows, you might be one of the very few lucky ones to make it (and I wish you all the luck in the world) - but statistically speaking it's very unlikely. Look at it this way: there are 185 million YouTubers in the US alone. How many of them have you heard of? Exactly. Bottom line: it's astronomically difficult to be a successful YouTuber.

Quote from: PixelatedMess on December 21, 2016, 01:33:02 PM
everyone thinks I'm a normal guy, not transgender.
I know this is all probably very new to you, but 'normal' and 'transgender' are not opposites, so please think carefully about how you express that thought. The overwhelming majority of trans people are very much normal; in fact, boringly so. We even pay taxes and do our own laundry!

Quote from: PixelatedMess on December 21, 2016, 01:33:02 PM
But since dating is harder as a trans person, I would need to use an online LGBT website to find pansexual people and all that trouble...
Why would you need to use an LGBT website or look for pansexual people? I need to use LGBT sites because I date other gay men and that's where they can be found. But you mention elsewhere 'being a lesbian' which suggests you're attracted to women: if you transition, you would be a man so your main target audience would be straight women. Why would you use an LGBT website to look for straight women?
Quote from: PixelatedMess on December 21, 2016, 01:33:02 PM
I'm worried that IF I do become famous on YouTube, somebody will find my transgender dating profile and release to the world that I am trans... Then the world will treat me like crap because of all the homophobes and just people KNOWING my secret in general... I don't want to be a trans person in people's eyes, I wanna be a normal guy. Is it so hard to ask? 
Again, there's nothing abnormal about being trans. But you can choose to be stealth or go public with your trans status. There are plenty of trans people who are stealth on YouTube; there are plenty who start out presenting as their birth gender & later vlog during their transition; there are some who've been vlogging for years and then eventually decide to reveal they were assigned a different gender at birth and had transitioned before YouTubing. It's all been done multiple times, and the choice of how you present yourself online is up to you.
Quote from: PixelatedMess on December 21, 2016, 01:33:02 PM
I've been worrying about that all the time. All those things. And I guess I have been trying to convince myself that being a girl is fine enough.
Is it though? I also tried to convince myself that I could live as a woman; I even got married & had kids. But it wasn't fine and dysphoria gets worse with time, until eventually I decided to transition in my 40s. You too could transition at any time - there's no rush! - but the longer you wait the more difficult it gets and the worse your results will be.
Quote from: PixelatedMess on December 21, 2016, 01:33:02 PM
I could just live as a tomboy and it would be much easier,
Would it? Tomboys are women; tomboys identify as female even though they don't necessarily stick to societal norms of femininity. That's the problem with pretending to be a tomboy: if you're really trans, it wouldn't be enough. If you're not trans, it'd probably be fine to be a tomboy.
Quote from: PixelatedMess on December 21, 2016, 01:33:02 PM
but on YouTube and IRL girls can't be gamers, make dirty jokes, etc, without being seen as fake, a slut, or just stupid
Who on Earth says these things? And why should anyone care about their opinions? I've done all those things (gaming since 1977!) and not only did I always tell filthy jokes... my mother did too! Nobody ever accused me of being fake, a slut or stupid... and got away with their private parts intact. Don't let other people's opinions tell you who you can be or what you are allowed to do. You do you, and everyone else can go whistle.
Quote from: PixelatedMess on December 21, 2016, 01:33:02 PM
Social life would be much better as a guy but I don't know what to do.

I can tell you know that there's a massive learning curve in trying to figure out how to be a man when you were socialised as female (or vice versa). I find it much better as a guy but that's because I've always identified as male & have felt innately uncomfortable with being perceived as female, but it's taken me years to get where I am and I still have a way to go. The truth of the matter is this: social life is much easier if you're presenting as your actual gender. So you need to be sure of your gender first, and that's where a gender therapist can help you.
Quote from: PixelatedMess on December 21, 2016, 01:33:02 PM
If I stayed as a girl, it would be...
- Much easier to date people and find someone to date
Perhaps, but would they be the right people for you? If you stay female, then the people who are attracted to you would be attracted to you because you're female. How would that sit with you?
Or would you rather attract a straight woman who'll treat you like a man & love you for your masculinity? Or a gay man who'd do the same?
Quote from: PixelatedMess on December 21, 2016, 01:33:02 PM
- I wouldn't have to hide the truth about myself on YouTube or IRL
Transitioning takes years, so if you get started now you could be indistinguishable from most other guys within a year or so of starting T. Then you start up a YouTube under an assumed name (never your actual name!) & you're good to go. As for IRL, most trans guys - particularly ones who start T at a young age - pass 100% in the streets. Trust me, I started T at age 41 and am the same height as you - and nobody ever suspects I'm trans unless I tell them.
Quote from: PixelatedMess on December 21, 2016, 01:33:02 PM
- I wouldn't have to work sooo hard for all the steps of actually transitioning 
Transitioning
is hard work, so if the thought of not having to do that is something that makes you smile, perhaps you're not ready for it yet?
Quote from: PixelatedMess on December 21, 2016, 01:33:02 PM
- I would be able to be a "unique" female... because all the other girls on YouTube are pretty boring and the same. They're all girly, straight, and are either fake gamers or makeup channels. If I was a girl on there, I WOULD be just like a guy, I could break gender roles and be one of the first well known lesbians on there, I wouldn't have to hide that either. I could be something NEW. But if I was a guy I would just be ANOTHER ONE.
No, I'm afraid that wouldn't be anything new or unique. There are plenty of YouTubers already doing what you propose to do, and if you haven't heard of them have you wondered why that might be... and how you might be able to become famous when they've failed to do so? And oh look - a quick google search of lesbians on YouTube brings up 143 million results... I bet most of those hoped to be famous too.

Quote from: PixelatedMess on December 21, 2016, 01:33:02 PM
- I could COSPLAY both genders and get away with it. As a guy, I couldn't cosplay females because I'd just look weird.
How do you know? There are loads of guys who cosplay as females and do amazing jobs at it.
Quote from: PixelatedMess on December 21, 2016, 01:33:02 PM
I can't wait too long because if I decide on being FTM I need to get a job right NOW to make money for the transition, but I'm lazy. So if I choose being a girl I don't HAVE to get a job. And if I choose girl I could actually make videos showing my face.
You can't decide to be FtM or choose to be a girl. None of us can. You either
are FtM, or you
are a girl. That's the fundamental question you need to answer before you do anything else - and you need to speak to a qualified gender therapist to find the right answer. The only choice you can make is to choose what you do about that answer.
And what's the rush? Don't let your desire to be a YouTuber be a driving force in such a serious, life-changing decision. You'll probably lose interest in YouTube in a couple of years' time... but you're stuck with your body for the rest of your life. Don't rush into any decisions until you're sure.