I've heard this song and dance before. A lot of folks worry that they're making it up, or faking for whatever reason, or using it to cope with or cover up some other issue they're dealing with. "I thought I was trans but turns out I'm really not it was something else I'm sorry leaving now", more often than not they come back.

I don't know what all else you're dealing with but I guarantee it's not mutually exclusive with being trans. And if you feel like you want to be part of the community then you are more than welcome.