Earlier quoted context omitted.
What you don't understand is that if you hate life, and perhaps if you have money and comforts that you know should help... but you still are miserable, it feels hopeless. The money traps you. It's so hard to imagine taking a huge pay cut. But that pay cut, and living life the way you want, is more important. Hating most of your hours each day until you're 45 or 50 and then retiring will leave you such a different an…
The other issue with trying to power through the job whilst absolutely hating it, is that your performance suffers and you end up getting fired. The turnover rate in quant finance is extremely high and it's not just because people voluntarily quit.
Sounds like you're only going to make another year or two at you're current job before you're totally fried. So perhaps start looking for new stuff now, and start socking away extra cash in case you want to retire.
P.S. The turnover rate in programming in general is very high. I was surprised the 'average' programmer changes careers after 10 (5?) years. Burnout is real everywhere.