I do not believe in guilt, moderation or dull pencils.
Creativity is a voracious animal. It needs to be fed regularly. If you leave it untended for too long, you run the risk of starving your passion and diminishing your spirit.
Creating one single story often requires experimenting and planning and falling on your literary rear more than once before you find the way that works for your particular tale. The most important issue is to keep on trying until you get it right.