I believe the suggestion you sue should be taken tongue in cheek. You are not the only student who has graduated a program to discover that the field isnt really a fit. You can continue to blame your university, your colleagues, the lack of a highly scripted step by step curriculum , but the reality is you need to do some serious introspection. You may want to teach, but its really not about what you want. Its about the students and it seems you are seriously incapable of delivery quality instruction in a way that reaches students. ‘Book smarts’in college doesnt always translate to good teaching.