Sometimes you won’t have the solution straight away.
You might need to let the problem percolate.
Leave room to think on it a bit.
It’s perhaps a difficult problem.
That’s okay.
You have solved difficult problems before.
You will solve this one too.
It maybe doesn’t feel like it right now.
So that can be frustrating.
Do something else.
Take your mind off it.
Go for a walk.
Exercise.
Do some gardening.
Go fishing.
Have a swim.
Take a shower.
How many ideas come in the shower!?
Relax.
The solution will come to you.
“It is no good getting furious if you get stuck. What I do is keep thinking about the problem but work on something else.” – Stephen Hawking
“We don’t know where we get our ideas from. What we do know is that we do not get them from our laptops.” – John Cleese