I've taken to using a sort of internal version of "disagree and commit" - I have the little mental debate with myself, arrive at an ambiguous juncture, then pick an option (at random if necessary) and go all-in on it. If it turns out I was wrong there's usually still time to course-correct.

Delaying or not making a decision is a choice itself, one that is almost always inferior to the options you're stuck between.