This really does sound like burnout. One of the most helpful explanations I found was that burnout isn't just (or even in an individual case, at all) caused by 'working too much'. Instead, it's a mismatch between your values and your work. A classic example is wanting to make a positive change in the world but instead having to wrangle JavaScript frameworks for some incredibly dull (although potentially still valuable to others) business application. Or, alternatively, you know your intelligence could simply be put to better use, or you're simply intensely curious about truly different things for which there is no real current market.
You must take an extended break to reflect on what exactly you want to be doing, where your career needs to go, and so on. I say must because the only alternative is extended burnout and very possibly health and psychological issues. Don't ignore the signs! Doing so always ends badly. If you can't yet due to financial reasons, you simply have to start devising a strategy to do so. Otherwise you're making the best of a bad situation and you'll have to move to coping strategies instead which others have explained in this thread. Such coping strategies can mostly only attenuate the burnout, they probably can't solve it on their own.
Personally I got burnt out from caring too much about something which ultimately was literally the opposite of all my values. I didn't become burned out from working too many hours.
The crucial thing with the 'burnout isn't exclusively from hours worked' realisation is that you can burn out working only 10 hours a week on something if you've come to truly despise it and all it represents.
You must take an extended break to reflect on what exactly you want to be doing, where your career needs to go, and so on. I say must because the only alternative is extended burnout and very possibly health and psychological issues. Don't ignore the signs! Doing so always ends badly. If you can't yet due to financial reasons, you simply have to start devising a strategy to do so. Otherwise you're making the best of a bad situation and you'll have to move to coping strategies instead which others have explained in this thread. Such coping strategies can mostly only attenuate the burnout, they probably can't solve it on their own.
Personally I got burnt out from caring too much about something which ultimately was literally the opposite of all my values. I didn't become burned out from working too many hours.
The crucial thing with the 'burnout isn't exclusively from hours worked' realisation is that you can burn out working only 10 hours a week on something if you've come to truly despise it and all it represents.