I did that job for a decade, too, and god, it's a real soul crusher. I got paid for work, but none of it was ever good. I did about two and a half jobs for one terrible salary, spent a lot of time feeling like an utter failure, and I'm a lot happier person for having left it.
It's an incredibly difficult job and I have nothing but respect for the people who do it, because schools will try and crush you flat.
@mav @scottsantens I understand and respect your experiences. Everything was good for me until approximately the last 5-10 years. I became depressed, suicidal, and had to get a lawyer. Time to leave, and I did so with no regrets 2.5 years ago.