mh-
@Draekos The slightly-too-easily-offered answer is "if it makes you happy, do it," especially because art progress is incredibly hard to evaluate (color sense isn't figure drawing isn't composition etc).
But I get the "why do I try" relatively often and it sucks. I hate feeling that way, I'm sorry you're there right now and I hope how you feel about your artwork shifts back to how you feel when you're really happy and productive.