No, there is nothing wrong with you. You're a normal teen on top of being on testosterone. In my opinion, males at this age can have a higher sex drive than girls. I understand why you hate your vagina but it is the only sexual organ you have right now. I'm not sure if you plan to have bottom surgery or not. What I'm saying is this. There is nothing wrong with you, hormones give us our sex drive and there's nothing wrong with masturbation or having thoughts about sex.
I'm always here if you want to talk, okay.
I had a FTM friends with benefits and he was very sexual because of hormones, to help ease his mind he kinda liked to think of the cliterous as a small penis. Also he would *** like every 5-10 minutes during sex (kinda annoying having to stop several times TBH), would say what you're feeling is natural thanks to testosterone.