Hi Mark, and welcome. I wonder if you might have some social anxiety, or depression. I don't know enough to say for sure, and of course we can't really assess anyone over the internet anyway, but what you are talking about doesn't quite feel like BPD to me, although you are pretty distressed and concerned about being able to connect with people and maintain relationships. It does sound like you can connect with at least some people, which is good. It could be mainly that you are more comfortable having a few close relationships than with trying to be friends with a lot of people. There is a continuum of introversion through extroversion, and you probably fall more on the introversion end. Which can be normal if that is simply who you are and you need to find a place in life that is comfortable for you.

If you feel that you need therapy, most colleges and universities do have free counseling centers for students, so that might be something for you to look into. Adjusting to college and finding your way in the world can be difficult for a lot of people, and if you feel that you need help with these things, then you should ask for help.

I'm not sure if I answered what you wanted answered, so let us know if there is anything that we can do to help you too.

TC,
Rap