Sometimes, when you face a fraught situation or a complex problem and feel like you need to think about it more and harder, what you should do instead is stop thinking at all.
Clear your head. Get out of your own way. Let it go. Empty yourself. Create room for the needed insight to arrive. And then, perhaps, as if by magic, just the idea you've sought may come your way, and without all the effort you would otherwise have expended in vain.