This is a difficult place to be in. You should try to discuss this honestly with your parents and see if there is a school counselor to talk to about these things. If you don't, things will only become increasingly more rough.

This is my background with higher education. I went to a very expensive and exclusive "great books school," didn't have friends there but liked the program. I had a nervous break down where I stopped sleeping for a few weeks. My grades dropped and I dropped out. I had to go to community college as a result where I nearly got expelled several times as I battled with professors who tried to teach me pastafarianism, ancient alien theory, and on the sexuality of nuns in the middle ages (all in 100 level classes, it didn't get much better), went on to another private school and was "indefinitely suspended" from the school for openly criticizing the school. Now I'm at my 4th university. It can get rough.

So there are some different options available.
1. You can get out the elbow grease and tough it out - a lot of jobs don't really care what your major is as long as you got a degree.
2. You can switch majors if they let you remain at the school. (Switching majors is very common, most people don't graduate in just 4 years.)
3. You can switch universities and majors. You have 3 years already, so you could easily transfer in all those credits and not be set back much. Some accredited universities allow all 120 credits to be transferred from elsewhere, so you could probably transfer yourself into an associates degree instantly. If you have prerequisites left, then you can get those at a community college or cheap online school easily and cheaply enough.
4. You can drop out and take another route to a well paying job until you get the debt settled. There are some places that pay quite a lot to unskilled labor or you can find an apprenticeship.

Remember, for the most part, you can always attempt university again in the future.