new to being in situations where I can actually meet girls and make a move. did I do well my first time trying?

I went to my first ever party where I knew literally two people, but knew the names of about 2/3 of everyone else. When I first arrive to a group of girls one of them starts talking to me, and we're exactly alike and within a minute everyone within ten feet started saying we should date. After about 10 minutes she hands me her phone and tells me to put my number in it. I was caught really off guard so that's all I did. I didn't get hers. So throughout the night there were a group of about 9 people that stuck together, and just chilled. I talked with this girl the entire time, sometimes doing some kino, making plenty of sexual talk and just having a good time. I had to leave first due to particular circumstances, but I didn't think to do anything besides say bye. No hug, no k-close no anything. I'm just sitting here the next morning wondering if I fucked up or not, and waiting for her to text me sometime in the next few days.

So how'd I do, and how should I improve the next time I meet s girl at a party or just see her in general?