Both insecurity and perfectionism are traits that punish a writer. It helps to feel that you are on a journey – where the end point is unknown. Your challenge is to be honest on what you do each day, how you experience what you do, and choose, based upon each day, the things you will do next.
What has been accomplished at the end of a day – in writing, in reading, in learning from stories, in knowing what you want – rest assured – it is your best offerings of that day.