Dear Eric
I am sorry you are having trouble in making friends.Here are some my suggestions and I hope you will tackle the trouble quickly.
It's a general problem to most of us in terms of making friends,but it's not serious.The first thing you need to do is to have confidence when you talk to your classmates,do not fear communicating,others may just like you eager to making friends,just don't have such an opportunity,there is nothing to afraid of.The second thing is let them know you are firendly,you gonna to show your good attitude.It's really not necessary to quarrel with them due to a minor issue,tolerance is the key.Moreover,if your friends want you to do a favor for them,you should help them as long as not invade your privacy or profit too much.The last thing to make friends is the topic,topic is very important.For example,I am very familar with NBA,and it's very necessary to talk with someone who is interested in NBA,if I talk to someone who never watch NBA before and that probably will lead a cease of our conversation,try to talk different topic amoung variety of people.
Hopefully,that helps,if you have any question,let me know
Sincerely
Li Hua