For the last 2 years I worked a relatively easy but stressful job. I was overloaded with work in a company that did business poorly and started having anger issues. 

I recently started a new position, and it’s made me feel really stupid as I can’t understand anything. I’ve been having trouble sleeping the past 3 days and have hardly ate anything. 

I might have just screwed myself over but I quit a job after 3 days. The anxiety I felt leading up to now has turned into depression. Has anyone else abruptly quit a job to focus on their mental health ?