Homesick college freshman?

Hi. I'm a college freshman. I go to school about 45 minutes away from my home and live in the dorms on campus. I have social anxiety so I don't have any friends here. I go home every weekend. Being here is getting harder and harder for me and I really want to just flunk out for the semester and go home. I am VERY depressed. I haven't been eating hardly, or sleeping. This is a big problem. I really don't want to go home because I only have about 5 weeks left of the year. Any advice??