Well, I do know how that is. Whenever I get upset with the direction my art is taking, to the point that it isn’t fun, that’s when it’s time for a big revamp in how I approach things. Or, it’s time for me to sit down and commit to trying someone else’s style. SOMETHING to shake things up.
You have to think about something that you’d utterly love to do, probably! All throughout my little art rampage the other day, I kept frantically thinking, “colors, I need to do something interesting with colors, maybe just a rainbowy piece or something to get my mind in that zone,” so maybe you need to find some sort of little facet you can focus on, like making repetitive marks, or controlled ink blobs and drawing things from that, or being very meticulous, or… or something! Try to think about the original thing that got you interested in art to begin with and pull from that. If it was beautiful eyes on people, then start drawing tons of eyes in different ways. If it was animals, draw a bunch of them in different styles. If it was color, mess around, search for new ways to put colors down, and so on. You have to find *fun* challenges for your mind to take on in order to want to do it. When art isn’t fun, you’re just going to feel shitty doing it and the end result won’t look so great. You have to pick a focus and go from there.