You will be able to take care of yourself, all advice above is good and useful. I did much of my college credits via CLEP and ACT/PEP and, even, performance exams. All fully accredited and the degree paid off. I did not do this right out of HS, I worked first.
If you know where you are going to college, talk to them ahead of time about work as they may have student jobs for those who need/want them.
Follow your passion. A two year degree is a great start and you can choose a focus that will help you learn skills needed to do what you want to do.
The concerns you express sound pretty normal. It bothers me, and I am sure adds to your anxiety, that your mother is using paying for school as a weapon. It is OK to pay for college or not, but not to play with this. If I were you, I would look for a part time job asap so that you can begin to develop an independent self & lose the fear of stepping out there. Right now is a challenge, but if you are up to is, there are places hiring. (((hug)))