Put force behind the decision once analysis has earned confidence.

There is a point where more thinking stops adding anything and becomes a way of avoiding the moment of commitment. Analysis has done its work when it has given you a defensible reason to choose, and after that the return on more consideration drops sharply. What the decision needs then is force behind it rather than further examination.

Decide in advance what would be enough to know, and stop when you get there. Then commit properly rather than half stepping into it. A well backed decision that turns out imperfect usually beats a perfect one entered without conviction.