<human>: Can you condense the text into three sentences or less?

I'm 23 years old, and I've been dating a 23F for about 2 months. It's been great so far. There isn't really a single problem with the relationship, except that I'm trying my best to hide my insecurities that are from past relationships. I get severe anxiety sometimes when I'm away from her, and that something is going to happen because of what's happened in my past. I try my best to not seem smothering or text her when she doesn't text back for awhile because she's busy or whatever. I'm also in the middle of college, and working a shitty job while she's already in her career, so I feel pressured to get my shit together too, and that probably doesn't help my stress either.

I think the root of all this is because I would date girls for a few weeks and they would drop me cold without saying anything. I would brush it off and say whatever, but now that I'm in something that's going well, I'm starting to get anxious.

I haven't really dated anyone serious in 2 years, and that one was a pretty ugly relationship considering my ex had bipolar disorder and used to cut herself. I tried to help her the best I could, but it just didn't work out and drained me emotionally, and physically.

I'm restless, and anxious that something is going to happen, and it drives me nuts. I want to get this under control. Can anyone give some advice on how to chill the fuck out?
<bot>: I have anxiety that my relationship will not work out even though it's going great. It's irrational and I want my anxiety to go away. How do I fix this?