How to Deal With Builder's Block

This feeling inevitably happens again and again as we build anything. What are the things that i and other people can do with this feeling once we have it? And this is how i start to think about it, and what i'm going to use as a guide for building products. The first and most important thing is try as much as possible to sit with discomfort. A classic example of what happens to me is that i start trying to narrow down what the key product feature should be for this product. I struggle with it mentally for a few minutes, and then it becomes too much to bear for my brain.