I don't know what I'm doing...

Met this girl a while back but didn't have any kind of contact information. We matched on tinder a few weeks ago and we had our first date last night. She came over to my house and I cooked then we just hung out and she left.

After she left she said she felt awkward cause she thought I wasn't interested, which I am. But I honestly have no idea how to show it. Like it felt like I was hanging out with a friend last Night and I don't want it to.

Everything about this gives me so much anxiety. I was with my ex since I was 15 and we split 2 years ago. So this is the first of any kind of dating experience I ever had. We're talking about her coming over again next week. For pizza and a movie but im already feeling nervous about trying to progress things cause I don't even know what the hell to do...