You make $70k you can more than afford to live on your own so move out. Problem solved.
If you don't have the cojones to just walk out then maybe come up with some kind of compromise. Like you will go to college, but only if you live on your own or something. Then take night classes for some business degree or something. Maybe some online school.
As for the degree IMO it depends on what you plan to do. I have a BS that I have never used or even been asked what kind of degree I had. Although my field is more about samples of your work and some places make you take some tests they setup. Now I have my own business and I also have never looked at what degree anyone I've contracted work out to has. Now if you want to be a doctor.... probably going to need a degree.