Major content warnings for this post, self harm and suicide //

I'm an elementary education major who was forced to unexpectedly take an extra semester. I was supposed to be student teaching this semester, but my cooperating teacher last semester decided, in the last week of the semester, to tell my professors that she saw me unfit to student teach. They agreed, stating that apparently all my lessons had been poor, despite every lesson review coming back with flying colors and that I was supposed to come to them to solve problems that I didn't know were problems, and as such, it was my fault.

Now I'm left doubting myself. I feel backstabbed and hurt and doubt if I'll even be able to afford this extra semester. I feel burnt out, as they're making me repeat several classes and take 'filler' classes that waste my time on top of trying to plan for observations. I find myself doubting my every action, since I'm afraid everything might actually be a problem that I don't know about. I've started self harming and tried to commit suicide over the winter break. I'm passionate about helping children, but I'm scared of the adults in the teaching career. Am I justified in how I feel? Did anyone else go through a similar situation? What should I do from here?