I want to give up making things better with my girlfriend?

Long story short I I've been dating my girlfriend for a year and 8 months. Were both 19 and recently she found out what i've been doing behind her back. What i did was changed the names of girls i had in my phone who were close friends of mine before we dated. And she also found out that I studied with a girl one time and the girl ended up taking a selfie with me and my girlfriend found it. She told me before any of this happened that I can't talk to no other girl no matter what it is same for her for guys. So when she found out she was traumatized and now I can't hangout with guy friends anymore, I'm being tracked by locations on iphone and we fight about the same things everyday. I'm in college and its hard to focus if were fighting constantly (she's starting it). I told her to stay and she did and its only been two weeks since she found out. I can't handle it no more. I'm not myself anymore and I don't have any friends. What should I do?

Break up if you aren't happy. Simple.

With this grammar… And you say you are in college? Okay…

I think you guys should break up:/ because you seem to enjoy talking to other girls and letting your mind wander rather than loving your girlfriend who seems to be completely loyal to you. Of course she'd be hurt by what you're doing, you decided to be in a committed relationship with her but your head isn't where it should be. Break up, find peace and hopefully she'll find someone as loyal as she is.