It's the same with the visual arts. No one sets out to make a masterpiece. It's like the cosmic forces all have to come together in just the right time and place for it all to work. Artist's can't predict the impact their work will have. Pieces that seem right don't click. Those that don't seem right, sometimes are. It's a strange process.
Now I know that I'm never going to create a masterpiece. But, my creative process takes a certain method just the same. For me, the work has to "talk" to me. I have work laying out all over my classroom tables. (There is room for six students when the tables aren't covered.) It lays there for days, weeks and sometime months. Every time I see it, I ask the question.... "Who are you?"
Sometimes I put it away and pull it out with a fresh perspective. Often it goes back in the drawer. The work evolves and it develops a life of it's own. Many, many pieces start out as one thing and end up as something different. I've even been known to take a piece that I've been wearing and re-work it. Sometimes you just have to live with it to know if you like it or not.
My sketchbook isn't over flowing but there are a fair amount of sketches in it. Sketching saves time and money when working out a piece. I know I should be digging into those designs and working on some of them. But, I have a tendency to jump in feet first and then "feel" my way around. Quite often, I work in reverse. Make a piece, then try to figure out what I am going to do with it through sketching.
Talking to colleagues for opinions and suggestions is another good idea. And, so is talking to your work (and listening!)