Beginning to question gender identity

Honestly, I never thought that I would be questioning this part of myself; it seemed difficult enough to come to terms with my sexuality, but now other parts of me are breaking open. I don't know whether it's college, the fact I'm currently away from my parents, or am just interested in the idea of breaking away from the gender binary; it's really scary, and of course, I don't want to fall into this for the wrong reasons.

I read through the GENDER book yesterday and feel like a certain nerve struck in me; to start, biologically I have always been male and consequently, have considered myself a male. But this doesn't ring true as much mentally? I tend to imagine myself as either part of both genders or not really falling into either, but I'm not sure if this is just a fantasy feeling or something I've been suppressing. Not to be stereotypical but I've realize that I have experimented with different modes of appearing "feminine" while I was younger (wearing a wig around the house, trying on panties once, pretending my bath towel was a dress, etc.). Sometimes I'm not sure which is the "real" of me: my current all-male presentation, a more "feminine" state of mind, or just not really thinking at all about the gender binary. Of course, I'm fine with wearing male clothes, but they feel limiting in a sense? Like on some days I would probably feel like wearing a dress or something else just to feel what it would be like. But due to my upbringing, I would be afraid of doing such a thing in public or if family members found out.

Yeah sorry, I'm just so confused right now lol. Is there any more books or resources available that could help me figure this out (I know I could Google these things, but I'm wondering if anything in particular would be very helpful)? Thank you!