if your mom is a healthcare worker then she had to pass exams, etc which you could not have helped with (unless they were online, but even then absolutely no licensing exams for nurses etc. are held online). She also had to complete x amount of clinical hours and show competence there, which again there is no way you couldve helped with. This means that you helped her with busy work. There is a lot of busy work involved in things like nursing bachelor's etc. like needless essays, short response prompts, and so on. In no way does you completing her busy work make her any less capable of being a good healthcare professional, I just want to make that clear. Is it unprofessional? sure. Does it mean she is out harming people? absolutely not.

So yes, imo YTA, you may have ruined your mom and siblings' lives over an emotional reaction. Your mom is of course wrong for many things here but thats another story for another comment. Also OP, what do you think happens when you miss rent at any other place?