I am sorry you have been pushed into playing a codependent role for your parents. Unfortunately, that is often what happens when a parent is an alcoholic where the child ends up picking up the pieces and doesn't really get to experience a healthier parent. It sounds like your father is also codependent yet he also is expecting you to pick up the pieces for him too. It can be quite the challenge experiencing that in that guilt can become something you experience when you can't fix what's broken in them.

I agree with Liz in that if you can get dorm space it can benefit you in giving you distance from being expected to carry more weight than you deserve to carry. You need to experience having a chance to develop yourself and experience some personal freedoms. You deserve to be with piers you can socialize with away from your parents so you can grow as a person and learn to be more independent. Your parents have not really allowed you to experience that because they are so dependent on not only you but others and that's unhealthy for you.