What is self doubt? Where does it come from?
I believe that self doubt is taking on the voices of others and believing those voices to be your own. It's not really our voice. Until someone told you that you couldn't or that it wasn't good enough, or that it was supposed to be something else...did you want it to be anything else?
That is their judgement, their attachment to how a thing should be. And if they want to create something that looks like it does in their mind, they have the freedom to do so. Paint your own picture!