Oh I know that feeling too well. I love when I finish something really quick, it turns out to be just fun and stress relieving. But most of the time when I try to do this, I fail misserably and end up spending days on a piece of work haha. But I'm very new to this kind of art, so that's too why it takes me a lot of time. One thing is for sure, one way or another, art finds its way out.