Search Results: first hangout with girl

Basically a girl i ran into today in my class that I haven't seen since a couple of semesters ago, she said we should hangout in the middle of the conversation. As she was leaving I asked the girl if she wanted to hang out tommorow, she said sure and asked me the place, I wasn't sure of the place , she suggested one and I said sure, then I said I wasn't sure about the place (mainly because of the heat, but I didn't tell her the reason). As we were leaving on our own separate ways she asked me where we're meeting, I just gave confused I don't know facial and body langauge, she seemed a little agitated and said "we'll figure something out" , then I asked her for her number so I could tell her if we were going to meet up where she thought originally. She said sure, we exhanged numbers. When she was leaving she told me to text or call her to give the details.

I'm not sure if she remembered my name because we were classroom aquantinces who haven't seen each other in a while. I actually didn't remember her name at first either. So an hour later I texted her saying "in case you forgot my name's ___ " . It was about 50 minutes ago , she hasn't responded, (I don't even think it needs a response), but I've been out of the dating game for almost 10 years, i forgot everything. I know now the place I want to meet up at, but i don't want to double text her and have her think I'm a loser.

should i tell her the details now, should I wait for a text back, or if there's no text back should I wait until tomorrow? What should i do?