It seems the belief that holds me back is my attitude towards myself when I don't manage to do things. Any of them. It comes from my childhood when I was told that I could do better, to stop messing around and just do it.
I'm now changing that belief. I can do this. I may be slow at it, or do it in 2 or more steps but I will do it and finish it in a timely way. So There! 😤😁