From what you report, I’m not at all sure the problem is where you are living. The fact that you don’t like anyone and feel that others don’t like you suggests that the problem is as much inside you. It sounds like the years of abuse may have resulted in an internalized negative self-esteem and maybe depression.
Blaming your parents at this point may make you feel better, but it won’t make things better for you. Blaming others for being disgusting may be a projection of your feelings about yourself. Meditation or breathing may help relieve the immediate distress, but they don’t get down to the root issues.
If possible, I think you would benefit from seeing a counselor for awhile. I think you may need to work through the enduring effects of the early abuse. You need to develop the positive self-esteem necessary to feel generally good about yourself and to feel worthy of social relationships.
Look into whether your college has counselors available. If not, there may be counselors in your community or online whose fees are affordable. Lacking any of those options, do purchase a workbook or two on self-esteem and discipline yourself to do the suggested activities. You might also benefit from participating in one of the online forums here on Psych Central. People with similar problems offer each other support and advice.
Meanwhile: Limit your interactions with your family. You don’t need to fight about it. Fighting will only make you feel worse. At 18, it is only appropriate and normal for you to be spending less time with family and more time developing your own life.
Take better care of yourself and your relationships outside the house. Just do your assignments in the library or an empty classroom. See friends for breakfast or lunch or between classes. Consider getting an evening part-time job if you can. That would keep you out of the house and would also give you money to save for an eventual place of your own.
I wish you well.