I didn't make friends really until I started getting into my major and started seeing the same people in classes. I went back to college when I was 20 so I was slightly older than everyone. I also commuted and was in a serious relationship which made me stand out. I even got engaged when I was in college and had my son the second during my senior year. All that made me feel different from everyone else and I didn't make friends very well. But honestly I always convince myself that I'm too different from anyone to make friends.

Joining organizations is a good idea. Then you will meet like minded people.