Like other posters have said, I strongly recommend you see a mental health counselor.
Here are some other suggestions that I have that I think might help improve your mental health (keeping in mind that you should try these suggestions IN ADDITION to seeing a mental health counselor, not as a replacement for seeing a mental health counselor):
- During your free time, try to go out and do something fun/relaxing. You could go for a walk or bike ride (based on personal experience, I feel that being around nature is good for mental health), go to a movie (I know some colleges have free movie theaters; I don’t know if Harvard is one of them or not), attend an event (even if you go alone, you can still have fun), and really anything to get you out of your room and go out and do something fun.
- If you have not done so already, try studying/doing homework in an environment besides your room, maybe like a dorm lounge for example, or a library if you have low tolerance for noise while studying. I suggest this because when I was in college, I had a hard time studying in my room because studying/doing homework all day in my room made me feel so sad/lonely/isolated, so instead, I usually did homework in the dorm lounge, in an academic building, in a library, and basically any open space environment where I didn’t feel so trapped and isolated. And I suppose I could be wrong here, but to me your posts saying you never want to leave your room could be a sign that your room to you is a place to feel sad and isolate yourself from the world, and like me, maybe doing your homework in a more public, open space environment could help you feel less isolated. Also, studying in a place like a dorm lounge might make it easier for you to make friends.
Also, here are some comments that might help you feel better about not having any good friends in college yet:
- People post on this forum all the time about having trouble making friends during the first few weeks of college, so there are a lot of people like you who are also having trouble making friends during the first few weeks of college, and not having made any friends yet does NOT make you a loser.
- If you had no friends in high school, that means that no matter what, your college social life won’t be any worse than it was in high school. This is something to be happy about because some people that have trouble making friends in college also miss their good social life in high school and their high school friends and are sad that their college social life isn’t quite as good as their high school social life, but for you, because of your lack of social life in high school, just making one good friend in college would be a big improvement from high school. Even though your college experience is not going to be perfect, you can at least make it better than your high school experience. If your social life was pretty much at rock bottom before college, your social life can’t get any worse and can only get better from here!
- I pretty much had no friends during high school, but I made one good friend in college. And I didn’t make that friend within the first month of college neither, so that itself is proof that just because you didn’t make any good friends within the first month of college doesn’t necessarily mean that you will never make friends. You said in your original post that people who had a unsatisfactory social life in high school shouldn’t expect things to change in college, but for me, social life wise, things did change during college, so maybe you should rethink your theory.