Last weekend I was clubbing and drinking with friends. We were dancing when one od them pushed me just for lulz on one of the girls dancing next to us. I decided to take her with me, we were dancing and talking. I found out that she is 3 years older than me(I'm 18 if that matters). Few minutes later she said she has to find her friend, so I kissed her on a cheek, and said that I'm going to find her later. Fast-forward, I ended making out with her(even tho, I didn't try to attract her, but I guess that I nailed it at the beginning when we just met). I didn't want to do anything more with her, but she wanted my number, so I gave it to her.

Anyway, this is the first time I'm flirting with an older girl, and I dont know how to do it. I kinda feel like a child to her. What should be my next steps? I'm not a PUA or something, any tips will be appriciated.