I understand the felt need to change your situation, but it seems that now is a really important time to take a step back, take a deep breath, and think about the long term.
If you decide that you hate your jobs and need to change, that is what is going to occupy your thoughts and drive emotional state. Can you make peace with the downsides, realize the opportunities your current situation has, and capitalize on it?
9 credits per semester is a constraint, but nothing to sneeze at...and without a lot of means, it seems worth making the most of while you can.
While your current jobs don't pay well, the jobs that do seem to require things you don't currently have. You might run the numbers on where you can afford to make a break and go all in on school and new careers. Map it out, take some sense of satisfaction in the plan and a brighter future.