My (hardcore leftist education-establishment) stepmother was the same way. I eventually stopped seeking to engage in any activity that she could take away, and missed much that would've been worthwhile in my high school years because of it.
When I realized how to Galt a control freak like her and started to do so, things went from bad to worse. I got thrown out and sent to live with relatives in a distant city.
That ended up being a positive thing in the end, though. I finished HS in a new school and began to see that there was something other than illogical, dysfunctional leftism in the world (thanks Andy S. at CHS for pointing me in the right direction).
Still, if I ever do go back to Miami, I will piss on the family graves (father's side). The last uncle on that side promised me he was remembering me in his will, but it was total BS. The lawyers told me there was nothing in the will or trust for my sisters and me.
At least I've always been willing and able to work to support myself, even if I wasn't doing a lavish job of it. We're going to get out of California hopefully soon. Right now, I figure that once we get to northern Arizona, we can save significantly on rent and utilities. Maybe we'll even own property at some point.
Life has been difficult at times, but it's still a gift.