Sometimes you need to focus on thinking.
And sometimes you just need to act.
There comes a point where the imperfect picture you have is good enough to achieve the result you want. This point is different for every decision and finding it is an iterative process.
Thinking can only get you so far. I find that I tend towards more analysis, planning and information gathering before I take action. So it’s valuable for me to counter this by occasionally acting with less resources than I might be more comfortable with.
Action also gives you more information.
Interacting with the world provides feedback. Real feedback. Not just theoretical feedback from imagining how something might go. Feedback that enables you to refine your future actions, that helps you move forward in a better direction.
So when the time comes to make that choice, err on the side of action.