It seems you have a few misconceptions about life in community college.
First off, community college can be just as friendly, if not friendlier, than any other university. Community colleges are typically smaller, which makes class sizes smaller, which then makes a classroom setting more personal. The teachers themselves teach the class, not the TA's. You're not really "one face in the crowd" in community college.
If a community college allows high school seniors to attend, chances are you won't be the only high school student at the college. You can keep your old friends while making new friends (just because you say you're bad at it doesn't mean you can't do it). I've made a lot of friends at community college, and I still keep in touch with my high school friends. I'm currently a senior at a university, and I still keep in touch with everyone I've met.
It's definitely a good experience, especially if you're getting both high school and college credits for free. Do take advantage of this, because student loans will stack very quickly as you continue to drag on with your college career.
Don't get into the mindset that just because you're not "officially" a college student, doesn't mean you'll be an outcast. You'll be the one not associating with others if you think this way, not the other way around. Keep a positive attitude, and you'll make new friends while keeping old friends, earning high school and college credit, and keeping money in your pocket!