I don’t know what I am...

Hello. My name is Brittany.(i just want my identity hidden in case this is found by anybody i know... but the rest is true other than my name) I’m a 18 year old guy, and for a while now ever since I was about 16, i’ve been confused about my sexuality. I love girls, I am currently single but i’ve had many relationships and i have had sex previously and enjoyed it quite a lot. However, here’s what confuses me. One day when i was home alone, i went into my sisters room and saw her clothes. I decided to be the curious 16 year old hormone crazy kid that i am and try them on. I tried on her underwear, her bra, a tank top and fuzzy socks. I do have a foot fetish but that’s besides the point, it just adds insite as to why I wore the leggings and socks. It’s my favorite thing to look at on a girl, and wear. Ok back on track, so ever since i tried on those clothes that day i couldn’t get enough. i started getting creative and looking forward to those home alone days. i tried on her school uniform one time. i’d lay in her bed and cross my legs like a girl would. sometimes i’d even fall asleep in her uniform or clothes because i was so at ease and comfortable with it. Now i’m in the predicament of not knowing my true sexuality. I don’t have full sexual attraction to guys. at all. i have fantasies at times about having sex with a guy, but only if i was dressed up like a girl... i don’t understand it it’s so confusing to me and i really don’t know what to do. like. i know i’m not gay because i like girls, a lot. and i know i will continue to do so, however i also feel that sexually i should be doing more than have sex with a girl. i’m not going to go into detail in terms of my thoughts because i’m not 100% clear as to what’s allowed on the site and whats not to be said. but i’m sure you could imagine and it’s clear. just gay thoughts. but again i know i’m not gay. a bi friend of mine said she thinks i’m bi and yeah that kinda might be true but it doesnt answer the fact that i’d only have sexual relations with a guy if i was like a girl. my straight friend said she thinks i’m trans and i thought so too for a while but it didn’t make sense. i don’t want to be a girl 109%. yes i wanna be a girl but not the rest of my life. it’s like, i want to have sexual relations with a girl, but as a girl. and be treated sexually as a girl. in a way, a trans lesbian??? i’m so sorry if this makes no sense because it’s just as confusing to me as it will be to everyone else... i don’t know. I just need some opinions and insight please!!! i’ve had these thoughts and curiosity and confusion for years and i finally decided to reach out. please help!!!! thanks...