If you draw something, don't waste all your time on it. Take breaks, even if they take the whole day. Don't burn yourself out. It's better to take a break and finish your work later than trying to keep up with your own schedules.
I'm writing this just because I got burned out, I don't enjoy drawing, I consider it torture and a heavy burden. I drew for several days in a row, spending almost the whole day on it. It got to the point where my nerves just gave out and I look at my drawings with disgust, hoping that I will never do it again (Draw)
If you do get burned out, don't try to fight it off by drawing more, that's a sure sign that you need a break. This happens and you don’t need to think that something is wrong with you, that your favorite hobby has turned into a nightmare. It will pass. You just don’t need to make yourself nervous at the moment with an “irritating” thing. Take a break.