Good question! And yes I do have doubts. I'm not on T yet - but about to get on it in a year or so...
Just recently I'm having more doubts again! Just because it's such a huge life decision and a change, even if it were a positive one.
I got a great advice from someone here, stating that
it is very normal to have doubts throughout the whole process, up to the point when I have the testosterone in my hands. Just because you are doubting, doesn't mean it's not the right decision!!!
If I start doubting too much, I just remind myself of how my body currently looks. And how much I'd rather see a male body in the mirror. That usually does it for me!!!
I think it would be more scary if you didn't have any doubts at all! Having doubts is about wanting to make sure you're making the right decision. It's normal to have doubts when you are making any big decision or a change in your life.
I actually even made a thread about this:
https://www.susans.org/forums/index.php/topic,232034.new.html#newWere you nervous/scared to start HRT?
Though to my surprise many people said they weren't

... but anyway.
But I am definitely having doubts! And a bit scared. I think it's also just because I've survived for so long 'like this' so kinda used to it... though I hate the way my body looks female and I hate misgendering etc. etc. etc. I hate if I look like a girl in a pic. I've thought about this sooooo much...! I even signed up in here in the first place to just ask if I should go on T or not! I had so many doubts. Then I learned that... others had them as well, like concerns on the effects... and whether you'd like them yourself or not... etc. And that it comes down to the fact that you need to look male (or in your case, female) in the eyes of society, other people, and ofc yourself. I know I want to look like a guy. I want other people to see me that way. I also know I want to see that
myself!!! I always thought the social dysphoria was worse for me and that I needed other people to see me as one. But I know that I need it myself equally bad. Like I'm not happy if I pass by any mirror.
I still have doubts though!!! And the closer I get to being on T, the more I start thinking that yikes I'll really start looking like a man then... And like you said, I will be seen as such pretty soon... etc. Though I want that - the concept is still
new to me, something I've never experienced before. The fear of the unknown.... you know.
Like I can't be 100% sure it's the right thing for me unless I try it. I just go day by day... one step at a time. I'm not there yet so... why worry. I have the mentality that when I have the T in my hands and if I don't feel like it, I don't need to take it. Though I also know that if I had it in front of me right now, I'd take it no doubt about it! So it's very likely I'll feel that way then too! And then I've thought that... I can take that first dose. And I can have that same thinking pattern with the next one, and the next. No one is forcing me to take it. So... I can just take it one dose at a time!
This isn't the same as to being really unsure about starting it. But I think this mentality works for the doubt. Do I feel good about this? Yes! Then take it. etc. So... it puts your doubting mind at ease to know that just because you go to therapy or get a prescription for it and buy it and take it for the first time, doesn't mean you are required to continue if you don't feel like it after all. I'm really taking it step by step. My goal for now is to at least get the prescription first! And then think about the rest.
It's like splitting any big task into smaller chunks.
These might help you also:
Did you ever feel surreal finally transitioning?
https://www.susans.org/forums/index.php/topic,234862.0.htmlWhat was the thing that held you back the most?
https://www.susans.org/forums/index.php/topic,231654.0.htmlWhat was the necessary push you needed to start transitioning?
https://www.susans.org/forums/index.php/topic,233118.0.htmlJust follow your gut at the moment. Do I feel like getting a prescription is a good thing? Do I feel like buying the drug is a good thing? Do I feel good about taking it today? If not, wait till tomorrow. And ask yourself again. Just go one step at a time. And as long as you are having a good gut feeling about the step at hand, go for it. This way you're listening to your gut and not succumbing to the doubt/fear. As long as you're feeling good about it at that moment, you know you're doing the right thing