Hey Fumbling. I've been where you are - thinking to the point of worrying about everything. Here's what I recommend based on what helped me. Stop thinking for a moment. Put aside the idea of gender. And start doing whatever is comfortable for you. And this includes experimenting.
Get a binder that works. Wear it as often as you want to wear it. Do you have a friend with whom you can talk about any of this, at all? If so, talk about it. It really helps. You don't have to officially come out as trans and ask them to call you by a different name and use different pronouns. Just telling someone that the topic has been on your mind can be helpful, especially if it's with someone who is likely to be supportive of you, whatever you do. Find a way to meet other trans or gender variant people IRL. Even if you go to a support group and just listen without saying anything. It'll give you a more realistic idea of whether or not you relate to being trans than you can get online. You'll hear people talking about slightly different things too.
Give yourself plenty of time to explore and experiment. If you don't decide to transition, you'll be better off for having explored and learned more about the trans experience. If you do transition, you'll know you're doing the right thing and won't have to worry so much.
The things you're worrying about would indeed be pressing concerns if there was a rapidly approaching deadline for deciding whether or not you'll ever transition. But there isn't. Take your time, do what comes naturally, investigate as much as you want, don't be afraid to change your mind more than once, don't be afraid of indecision. Eventually, you will figure out what you want to do.
Best of luck to you!
Alex