as they say in the tao book - " Should you want to eliminate something, you must deliberately allow it to flourish."   - Thomas Cleary translation
becoming a master at something , you must first make all the possible mistakes you can in the area. If you were to measure yourself on the quality of your output, you would never get far. You'd be living a life of miserable longing and self-hate. Ira Glass has a famous quote +video clip about this.