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

My girlfriend and I have been together for 8 months and I realized that I have become very clingy and needy. It has gotten to the point that I am no longer happy with myself.

The problem is me not her. She is a very independent and secure person and she doesn't need my validation for anything. She is the kind of person that has a lot going on so she doesn't really "need me." but I on the other hand have quite a few insecurities that I need to work past. 

It has gotten to the point where I stress about things like if she is cheating on me (which I don't think she would). Or when she doesn't text me back for a long period of time I get a feeling of anxiety and I stress. I find myself wondering what she is doing 24/7 and checking my phone all of the time to see if I got a reply from her. I also often wonder if she even cares about me or she is with me for the right reasons. I am always at her beck and call and I cancel my plans or go above and beyond to accommodate her busy schedule. I even buy her gifts out of nowhere even when I feel like she is putting as much effort in as I am. 

All of these feeling are because of me and they are ruining my relationship and I just want them to stop. Is there any way that I can learn to stop being so needy and clingy and stop expecting so much from her and just let her come to me?

I fear that If I do not go above and beyond or go out of my way that she will not attempt or we will never see one another.
<bot>: I am a clingy boyfriend and it is ruining my relationship for me because I have become unhappy with myself. How do I learn to just chill and let my girlfriend meet me halfway?