I feel you have to learn to become comfortable with mistakes. Don't let yourself feel embarrassed by them. Embrace the feeling you get when making mistakes instead of fighting with yourself over it. By learning to accept and embrace those moments, you start to draw a new line of what imperfection you can tolerate. The tendency is to want to fight to make everything go perfectly, but that traps us into the anxiety of always trying to control the outcome. That fight takes enormous amounts of energy and makes the experience less enjoyable.

In the end, you can't control everything. There is always an element of uncertainty you can't predict and that is fine. Expect it and accept you will handle that uncertainty when it shows itself as a 'mistake'.