Your not alone, My story is very similar I have a very few select friends that I sortaish hang out with, I am just a tad bit older then you turned 30 in august and that just happens to be when I was like. "Ok I need to figure this out"
I've been struggling myself to come out to my family and friends or anyone I trust enough in RL about this "desire to be a female" since as far back as I can remember.
It isn't easy and will take a lot of self discovery. I suggest doing research, read other peoples stories. You'll find a lot people will share common experiences.
Also there are plenty of cis and transwomen who enjoy playing video games, cars, bands ect. So don't worry about that!
Heck I know I really enjoy video games.