Trouble making and keeping friends as a Sophomore? HELP!?

[LOONEY]

I'm currently a sophomore and I don't have a group of friends to hang out with. I have a couple friends here and there but we don't hang out regularly and they are all older then me. I always get depressed over the weekends because I don't have any plans and the pictures that get posted on my twitter and facebook feed from everyone's college parties make me even MORE depressed. Why can they easily make friends and keep them when i cant??

My freshman year kinda sucked because my roommate situation blowed. she wrote nasty things about me on twitter and stole my medication etc. she moved out mid semester thank god. i couldnt have the roomie to roomie relationship because we hated each other. i had my own room to myself which left me staying inside all week because i had no one to go out with.

now i feel like im behind on making friends since my small schools have all their cliques already formed. it would feel wierd if i went up to a group and introducing myself...like they would think "we know who you are....why are you doing this..." i literally have only one guy friend on campus and am only friends with my bball team. no. one. else. and since i commute it will only be harder. and since i try to go to parties, i cant really drink because i need to get home. i felt bad because i feel like my friend was obligated to let me stay over because she didnt want me to drive home drunk.

any advice??

[Carnac Yomama]

High school is over, you're not supposed to be going to college to make friends or spend the night out drinking. You're there to work. Grow up.