Hi, I've posted a few times before, and met some of you lovelies

. Honestly I don't know why I'm posting this now.. I'm about to go to bed, so if I don't reply that's why. But, for those of you that haven't talked to me on the site, I'm Riley (still deciding on the name), 18 years old and mtf. This post is mainly going to be about masturbation, so if that's something you don't want to read, please click away (I won't get graphic or anything). But, basically since I was 12, up until quite recently, I masturbated traditionally how a boy would. But, recently I started using my 'parts' and treating them essentially like a clit, which was great. I can do that when I'm a lot more emotionally in the mood, and it feels so good mentally. Also, I was able to quit porn, and actually just use my genitalia on its own for once. But, if I'm dysphoric, I'll have a much harder time doing so, and have found myself resorting back to the old way. Anyways, that's not really my concern. My concern is, if I'm not emotionally in the mood, I'll end up, more or less wanting to have sex traditionally how a man would. This just really, really disturbs me. Especially because I'm not at all a dominant person, but I'm much more attracted to girls than guys (which I believe is the case for a lot of trans girls). It just confuses me even more, and I don't know if it's the T in my body (I'm pre everything), or because I'm a horny teenager, or if it really is because I'm not trans at all. It scares me. I've been doubting myself for four years, and this has just been getting to me. I mean, from my POV right now, I couldn't imagine being a man in society, so this just makes me question everything. I mean, I know I want to transition, it feels like my only option at this point. But things like this worry me. What do y'all think? Am I crazy? Am I just a normal teenager? The thing is, it also depends on who I'm attracted to in the moment. Like I said, girls turn me on a lot more, and I end up having those thoughts.
Side note: I think I know for a fact that I want to transition. The relationship with my ex boyfriend was the worst, it was so, so terrible not being able to be his girlfriend. That relationship taught me a lot.