I just dont know..am i gay?

ok...so heres the thing...im 19..yet ive never had a boyfriend...nor a girlfriend....so i really dont have any experience with either gender and i always thought i was straight..but for the last 6 months or so ive started thinking about girls ..and now when i think about it...i could see myself having a relationship with a girl...sexually being with a girl..and maybe being lifelong partners with a girl..and every once and a while i think maybe i could be with a guy..but a girl just sounds so much better...and now i realized why every guy i think about dating ends up turning me off for stupid reasons...my brother and my aunt are gay so sometimes i think i wont be accepted cuz ppl will not like the fact that there are so many family members that are gay..and im so girly too..im going to school for hair..i want to be a makeup artist...i just dont know..all my life i thought i was straight but now i think i only thought that because i was brought up thinking that was the normal way of life..and all my friends were boy crazy....any advice on how i should take these feelings