Am i gay or straight or bi or what?

From a very young age i was bullied because i did not always have my dad with me but i was always around my mum, and at a very young age one particular slightly older male took advantage of me and pushed me into kissing him (age6) and cuddling him etc, i still to this day remember, when i grew older i was experimenting with males from age 14 till now (18) but i have never had an experience with a girl except (kissing) which i loved! Also during highschool i was bullied because i use to have alot of girlfriends and i was very spoilt and always had expensive clothes and the latest technology, its first was a few people teasing me calling me names like 'fag' and 'poof' and then everyone started teasing me, when people teased me i thought to myself (maybe i am gay, everyone else must see it and i dont so maybe im just blind and stupid) so then i just played on the names people gave me and started acting on it, pretending to be a 'fag'/'poof', now im 18, almost 19 and i think, is this who i really am or did i just lose myself in the bullying and tormenting of my teen-years and just shape myself into this personality, i really want to hookup with girls but i never have the chance because i feel more comfortable in hooking up with guys because im skinny and not built like every other guy. I look at both gay and straight porn and i feel aroused with both, but how do i find myself, i really want to go with girls but i think i need to change the persona all the bullying brought upon me. I do want to have kids and get married in the future (the old fashioned way) so i just want to know, am i gay?