My first move on a girl..

I know it's a long story, sorry

For a long time i have thought im not just interested in boys but yet i haven't really accepted it or something. All people i know are just totally comfortable with people being 'different' in any kind of way. I haven't really strugglet with my sexuality because i never saw a problem with it. I haven't like really came out or something because i don't think it's such a big deal. For a several months now i have been looking more at girls at parties or stuff like that. I just would love to experience having time with a girl who knows that im into people and not one particular gender. At one party i've kissed with a friend of mine who knew, it was nice but weird, i wasn't even really into her so.. well, last night i was at a party and there was a girl, i couldn't tell if she was into me but she was constantly getting near me, so eventually when i was pretty drunk i couldn't help myself, she was gorgeous, i asked if she was in a relationship, i even asked her if she was into guys. i cant remember what she said, i got so fucking nervous, it probably was a rejection. I don't know how to do this really, and im scared i'll keep fucking things up, how does one know what person is interested, how am i able to make a move on a girl without embarrasing myself. I'm 17 and have anxiety so a bar is actually not an option.

I also don't know what i'm asking y'all, but i guess everything can help