Bars and being 19= LAME

So i met this girl at the bar and i immediatly got physical with her and we were just kinda getting a feel for each other and knowing little shit about one another. She kept sayin, "yer drunk right now" because i was getting so physical. I did drink a little but i was definatly not drunk. I responded by saying yer just not used to guys talking to you like this which she responded by saying no im definatly not. I also had to lie about my age beacuse she was two grades above me which was fine cause she believed it. Long story short i went in for the kiss a little to early. So how do you handle the shit test of a girl mistaking your natural confidence and balller game with being drunk? And what could i have done better to help me pull if not at least kiss this girl. Keep in mind i cant by drinks im only 19 so its not like i can move her around the bar n shit. also her friend blocked the shit out of me. I managed to avoid the first one by introducing myself but the second one literally dragged her away from me, This almost always happens when i get really physical with a girl which is what i always do at night cause im efficient and i dont like to waste my time so thats why now i try to go for the kiss early. WHat are your recomendations for solving this type of problem? Please try to answer both questions if you can.