I like the writing here: very clear and useful.

I have a very simple problem when doing mathematics.

I want to write a proof. But I also want to save time. And so I miss nuances and make false assumptions and often think the answer is simpler than it is. It's almost certainly motivated cognition, rather than inadequate preparation or "stupidity" or any other problem.

I know the answer is "Stop wanting to save time" -- but how do you manipulate your own unvoiced desires?