The world is slowly realizing that the advice to "suck it up", "tough it out", "walk it off", "man up", etc. aren't helpful. Real problems need real solutions, not platitudes.
I'm sorry you've gone through this. I quit a previous job with no other job lined up because of burnout. Fortunately, I could afford the 4 month gap in employment. My heart aches for those who can't.
That's true, it's important to recognize the problems and start working on them.
It sucks that you had to quit. I was advising the same to my girlfriend because she couldn't bear with work anymore, until a friend told her that she should not quit and instead the company should pay the burnout because they put her in that situation. Luckily she didn't follow my advise and it's been in burnout leave for the last 6 months, with help from a therapist.