I would maybe get out in the world and get some of the experience and support you feel you are lacking and then tackle school after that if you want. So far you have only known school and a less than supportive family. I'm 63 and now know that my work experience and day-to-day living did as much or more to make me successful in school, later. I have two bachelor degrees, one I got at 21, where I barely graduated, 2.00023 GPA and one I got when I was 56 with a 4.0 GPA in my major. I would definitely think of another track for yourself alone, that would work better for you.