You are not going to be really good at photography until you make all the mistakes. That's really how you learn. I shot some photos with the lens cap on a rangefinder Leica. Once.
In that case, 1) I should be closing in on excellence, and 2) take up large format if you want to really be perfect. There are more ways to screw up a shot than can be imagined in medium format or 35mm. ;)