Hey,
Welcome to the forum. I understand what you're going through; I went though a very similar crisis about three years ago. Before people turn up and tell you that only a therapist can tell you if you're trans or that you can't discover who you are through your sexuality, I want to tell you that it doesn't have to mean anything. In fact, it makes a certain amount of sense that your dysphoria might first begin to emerge in a sexual situation. Sex is the part of the psyche most closely associated with the unconscious mind, and all of the things that we've been keeping repressed over the years can often emerge in odd ways during sexual exploration; besides, escapism is something many trans girls fall into before they're able to figure themselves out. It might be that this was how you used to cope. Chances are, if you're feeling this conflicted about your gender, you have some major gender issues to resolve. It's quite possible that you are a trans woman; you may end up identifying as genderfluid, or any other number of things. The most important thing is that you figure out who you want to be before all else.
So, here's a question: If you could flip a switch, and transform yourself into exactly the person you'd like to be, what would their gender be? What would their body be like? What other qualities would this person have? If you can imagine where you might want to end up at the end of this journey, it'll help make this crisis a lot easier. It's not as simple as "am I this or am I that"-in the end, we all made a choice to deal with our issues the way we did (most of us by transitioning) and while it's tempting to say "I had no choice!" I think it's a lot more complex than that. So, the first thing to do is just figure out, in a perfect world-who would you choose to be? All predjuces, expectations, costs, fears and risks-everything aside, who would you choose to be?
Now, just to be clear-there's a huge difference between being female and being feminine. Liking romance novels and fashion does not make you anything other than a person who likes those things. The further I go, the more I realize how stupid statements like "these are for boys those are for girls" really are. I am a femme (trans) woman . I also happen to like gaming, haute cuisine preparation and know my power tools as well as most guys. The two have nothing to do with each other! So, don't let your interests guide your gender; being female and feminine are completely different things, and the sooner you're able to separate the two the more clarity you'll be able to find.
It sounds to me like you're in conflict. That's understandable; this is a scary issue to confront, and I hope you find some clarity. In the end, nobody here can tell you if you're trans or not. It seems pretty likely to me that you are, but in the end what anyone else thinks you may or may not be doesn't matter-you need to figure out what's going to make you happy. And, you will! I've been where you are hon, going back and forth between two potential futures, and I know how scary it can be. I hope you can find something that fits.
Best,
-Sasha