Is a summer job a possibility? I found new friends that way, when I worked between, then during the school years. It's not unusual to drift away from hs friends, as the paths you're all on diverge. And it's difficult to spend time with college friends when distance is involved. I've had many times feeling isolated. Even now, as a grown woman with children, children create a barrier to having a free schedule. I mention this, as it's possible to feel what you're feeling more than once in a lifetime. Sorting through it now, to establish a habit of what to do with such a feeling can help down the road. Therapy can help, I went on campus during my second year. I want to say that's a year that I began branching out to on campus extra curriculars as a step to less isolation. Finding my own interests, so to speak.