This seems repeated, but I feel like this could help someone who is in the same boat as I am.
I usually tend to have almost a month of inspiration to draw. Then I start to feel burned out. At the time, it kept getting worse.
Whenever I try to "force" myself to draw, I become unhappier with drawing. So I just let the motivation come to me naturally. I once read that if you take a break from drawing, you would be so comfortable in your break that you never draw again. For some people, that can help, but not on my case; I need to do other things so I can clear my head.
So in other words, I don't like, for example working on one finished piece for too long; so I either work on another piece or play guitar. It seems a bit like multitasking, but once I started doing this habit, I felt much better about drawing, and even for myself. Additionally, when I draw my finished pieces, I like to challenge myself little by little. I try to learn something new every time I draw.
Despite the ups and downs, drawing and music continue to explore me deeper about myself; Understanding more and more on what I could do improve myself and to improve others.
I hope this helps.