J,
I fully understand where you are coming from. I've had my ups and downs, and still do, when it comes to me being trans. I feel sometimes feel like I've "tricked" my wife, which she has told me that I haven't. I often think about what will happen when I tell my parents (still haven't set a date for that, but its coming soon, I know that much) and I often think of the hardships I'll face once I transition. I find myself, on certain days, absolutely hating the fact that I am trans. I often wish that it would go away and I could just be happy with myself. But the truth is, we are who we are.
It can be difficult coming to terms with who you are, I think most of us on here can probably tell you that. I've told my therapist that I sometimes have days where I just think that this is all wrong and not something I should be doing, but that I also have significantly more days where I know this is what I need to do to be who I truly am and to have a chance at truly being happy in life. She has told me that this is normal and she would be worried if I decided that I wanted to transition and then never questioned that decision. So what you are feeling is normal. It doesn't mean to stop and it doesn't mean to keep going, it simply means that you need to work on finding yourself. If at the end you find that you truly are trans, that's great, and if you find that you are not actually trans, that is great too. Whatever you decided, whatever you discover about yourself, at least you know who you truly are.
I am glad to hear that you are seeing a therapist and have someone you can talk too. I am not a psychologist by any means, but I feel like you need help figuring it all out, and that is completely okay. Realizing you are trans or even suspecting that you might be is a big thing and it helps to have someone who is qualified that you can talk to. I started this journey about a year ago and just a few months ago finally started seeing my therapist and I should have done that much sooner. I still have days where I just cry and cry and cry and wish it would go away, but its who I am. I've spent 29 years living a lie and accepting and embarrassing who I really am has taken a bit of a toll on me, and it sounds like this is what you are going through.
No matter what, though, remember that you are not alone. There are always places like this website and many others that you can go to for help and support, no matter what you are feeling.