Quantity not quality
There’s an odd pressure when you’re trying to exercise the muscle of discipline, it’s tempting to want everything you do as a part of that to be the best that it can be. Sometimes you need to just push through and exercise that muscle. When you’re starting out, quantity is often more important than quality. You need to get used to doing something regularly before you can focus on doing it better, otherwise the fear of not good enough can hold you back and prevent you from making the progress you want to make.