Glad to hear from you again Bhugz, I thought we'd lost you !
Well, I know this may not help, but it started for me at 15, last week I turned 40, and, guess what? I still struggle.
I don't think we can "make" ourselves get more comfortable with people. I think we need to get more comfortable with ourselves. It takes a lot of self-discovery to really know who we are, what we're about, what we want, where we want to go with life. For some it's easy, but don't think they don't have problems too. They seem to have an ability to shake off the concerns easier, like a second gear, they find the energy to get past, move on, and forget. I must be missing that gear in my mind too.
If I was able to go back to 21 and use what I know now, I'd say, the most important thing is to know yourself. Know who you are, what you stand for, what your intentions are. Be strong and believing in it. Then, no matter what others may think, your self-belief will cushion the fall. It means being able and willing to stand alone.
Can you get to a therapist? Medication can work wonders. Stay in touch
"Our greatest glory is not in never falling, but rising every time we fall." Confucius