If you're a creative who wants to engage in hobbies but you're feeling burnt out, do it badly. Write the worst story imaginable. Draw something hilariously bad. Make the most cliche poetry possible. You'll likely laugh and it'll take the pressure off. Your art could be better, but it could be a whole lot worse. Oh and draw from the shoulder, not the wrist.
As for general functioning, be kind to yourself. I don’t mean that in a sappy way, I mean recognise that you're going through a rough time. You wouldn't attempt to run a marathon with the flu. Treat it like that.
I think of my days as having varying motivation levels. Am I at full-functioning? Mostly? Half? Barely? Or not at all? 'Not at all' days I call write-offs or being 'logged off mentally'.
I vary my expectations of the day based on my level.
Too depressed to cook? No problem. You can just get handfuls of ingredients and eat them at the same time. So long as they're safe to eat in that state. Doesn't have to be a full on meal. It can look like an absolute disaster on the plate so long as it's healthy enough. One pan meals are better when you don't feel like dealing with a bunch of dishes.
Ultimately, no one is going to give you a grade on how successful of a human or not you are. Self-help stuff tends to be fairly focused on perfecting this and perfecting that but it doesn't have to be perfect. Especially not when you're going through it. But it's usually better to do stuff, even if it's half-heartedly terrible, rather than not at all.
_________________
Support human artists!
25. Near the spectrum but not on it.