Agonising
In art, never try to find out anything, or try to learn anything until the not knowing it has come to be a nuisance to you for some time. Then you will remember it, but not otherwise. Let knowledge importune you before you will hear it. Our schools and universities go on the precisely opposite system.
Never consciously agonise; the race is not to the swift, nor the battle to the strong. Moments of extreme issue are unconscious and must be left to take care of themselves. During conscious moments take reasonable pains but no more and, above all, work so slowly as never to get out of breath. Take it easy, in fact, until forced not to do so.
There is no mystery about art. Do the things that you can see; they will show you those that you cannot see. By doing what you can you will gradually get to know what it is that you want to do and cannot do, and so to be able to do it.