Not every problem gets better with more effort. Some just need more time.

Effort is the default answer because it is the one thing you control, and for some problems it is exactly right. Others are waiting on something outside you: a body healing, a group settling, a decision somebody else has to make, a feeling losing its sharpness. Pushing harder on those does not speed them up and mostly wears you out.

Sort what you are dealing with into the two kinds. For the ones that need time, your job is to keep the conditions good and stop checking so often. Put the effort into the other list, where it will convert into something.