<human>: Alright I will do my best to give as much info as I can, if more is needed let me know, if this should be in a different subreddit let me know, just hoping to find some help so I can understand my situation. 

So I am 19, male, in college, dating a girl, 20, at the same college.  We have been dating for a year and 2 months (met at school).  It is her first relationship, my second (same duration, in high school).

Everything was great when we started dating last year, but coming back this year things haven't been the same.  We have found our personalities are very different, which isn't necessarily a bad thing, but there are a lot of small things we each do which tend to annoy the other.  To compound the differences, we live on the same floor of a dorm this year, which makes it extremely difficult to have any distance.

She has suffered from anxiety and depression in the past (anxiety is an ongoing issue, check my post history for a story about that).  This makes me nervous about bringing up how I'm feeling, because she says constantly how she doesn't know what she would do without me.  She doesn't have many friends outside of my close friends, and I don't know who she would go to.  I am also transferring next year and we live far apart, so if I don't do anything before the semester ends (mid-may), I don't know that I could break-up in person, which is how I would prefer to do it.

I'm not sure what kind of answer I'm looking for, but I guess I'm looking for any input which can help me talk to her about how I'm feeling without totally freaking her out.  I have been feeling kind of anxious the last couple weeks and have really been noticing everything that bothers me a lot more, and it definitely is causing a ton of extra stress.  I don't want to cause her more issues with finals coming up (test anxiety is a big issue for her).

Can you condense the text into a few key points?
<bot>: How can I talk to my girlfriend about not being happy in our relationship without making her feel awful/panicky.