Meditation helps. I had a long stint in High School and college where I felt exactly how you do. Hell, I still feel that way sometimes. But I always find that it helps to work through why you feel the way you do, and act on that. The only way to grow is to engage with your imperfections, not merely acknowledge them. If you feel your loneliness is an imperfection, by all means reach out and ask the questions or say the things you aren't sure how to elsewhere. I can't imagine any of us here would begrudge you for it. Besides, it's healthy to gaze into the pit every now and then. All those vapors and naggings that come when you least expect don't just promise destruction, but rebirth. That's why they're so frightening and yet so hard to shake. Grab a drink, find a quiet corner and talk to them for a bit. You might learn something.