What is my schoolwork limit?

I want to take three classes a semester, but in reality with Mr. Hernia hanging over my head, and a pressing need to finish Greyschool, I’m going to try to finish my classes in that before enrolling in a normal academic program, yet I’m wild enough to do both, as Greyschool is an experiment to see how many classes I can handle before my stress goes through the roof.  Schoolwork is something that in my adult life, I have to set limits on because in the fourth grade, my parents made me do all the homework assigned despite other parents complaining to the teacher that it was excessive, as a form of punishing students.  Somehow with pre-diabetes symptoms, I managed to do all my homework through intensive encouragement.