It is not always by plugging away at a difficulty and sticking to it that one overcomes it; often it is by working on the one next to it. Some things and some people have to be approached obliquely, at an angle.
“The drop of rain maketh a hole in the stone, not by violence, but by oft falling.”
“Once I started dancing, I was not the spoiled brat or the rebellious child that I was as a child.”