The reason why worry doesn’t work is it depends on me already having the answer to my problem. By worrying, I’m putting my mind under pressure so it will be forced to cough up the solution. The problem is there often isn’t an answer there waiting, so this pressure means getting caught up in thinking loops that produce increasing anxiety. The mind goes into a contracted state where solutions become harder to find. It is only by admitting that ‘I don’t know’ the answer that the mind can relax and become receptive to possible answers from somewhere deeper.