ok, this is something I learned from a Vietnamese guy that helped me immensely.

Whatever task is at hand...and this means at home or at work. You focus on that task (this is hard for me to do, which is why I always made mistakes, eventually took me out of the workforce).

You can not think of what your going to do next...what happened yesterday..what is going to happen....you only think of exactly what you are working on in the moment. It works..it really does...and you be as careful as you can in the moment....don't worry about getting the job done either...it will get done..and if it doesn't get done in the time it is supposed to...that is because it wasn't possible to get it done...and you will at least know that what was done...was done carefully and correctly.