I know the feeling. The thing with burnout is, you kind of need to just...give yourself time to not do the thing you're burning out from. It doesn't go away easy. And the harder you push yourself, the longer it will take to recover from. As someone currently trying to recover from burnout as I type this, I'd recommend you take a break. Focus on self-care. Take long, soothing showers. Play video games. Do things you enjoy. Don't think about "omg my art will suffer" or "I haven't made anything in months" or anything like that. Stressing yourself out over it will not do you any favors. Relax, let yourself breathe, give yourself some grace. And if you don't finish anything you start? Well, you aren't alone in that either. It takes time to learn how to finish things. Let yourself learn. Let yourself breathe. Don't act like you need to make art to justify your existence or presence in any given space. Nobody's existence needs to be justified by anything. Give yourself some grace.

I also recommend trying to get more sleep. You'd be amazed how much impact sleep deprivation has on the psyche. And maybe drink more water (or any other drinks tbh), but I imagine you've heard that one before already.