I have taught college for several years now. Also, I have recently sent my own two children to college. I think many students experience this. Life has changed for them in many, many ways and for a lot of students this can be overwhelming and we want to pull back into our comfort zone. That's very understandable and very common. Both of my kids experienced this to some degree. My oldest really had a hard time. She went to the psychology department of her college and met with the dept chair for counseling. I normally wouldn't suggest thsi but it was a very small school and they didn't have student counselors on staff. I would strongly suggest that you get in contact with your student services or student health area and see what they offer. They are definitely familar with this and can probably help you a lot.
My youngest daughter had this as well but not as much as the older one. The youngest one had her boyfriend at the school with her. So that helped some. he had already been there for two years so she had someone familar with the campus and familar with the town to help guide her through it. The class work is also harder, the campuses are usually bigger and more difficult to move around. If you live in a dorm, you may have a stranger for a roommate but even if you knew them before, it's different living in close quarters with them. Even if you live at home, it can be tough because you feel like you miss things that others are experiencing.
Please try to realize that you are not alone. This does not mean you are doomed forever to suffer. This may be a temporary situation that can be handled by a little guidance and encouragement (and maybe some medication). Or it may be a more serious issue. Either way, help is the best answer.
Please check in with us and let us know how you are doing.