I agree with Joanne--going to church can change your life. I'm also going to suggest something you may find silly...take a walk around the block once a day and say hello to everyone you pass. I was given this advice by a counselor many years ago when I was in my early 20s and living far from home. I thought it sounded silly, but I did it. You usually run into the same people, and you eventually start talking to them. These people may not become your best friends, but doing this helps us expand our horizons and gives us more confidence to take the next step. And somehow, you always feel better when you get home. Please try it for a week. I'll be praying for you.

Do you go to church? If not start going, you will make friends easily there, asked to be prayed apon as you feel lonely.
You are never alone, God is with you always.