Seeing people overthink their way to the worst outcome when having to make a decision is something I see on occasion. A recent experience occurred in the middle of a basketball game as I watched my teammate course through several decisions and finally settle to shoot the basketball. He overthought his way to bricking the ball. Within the span of 3 seconds (a sizeable chunk of time in the basketball world) his mind cycled through from passing the ball to his teammate on his right side and then to the other teammate to his left. Followed by the idea of shooting the ball from 16ft away from the hoop. The idea of dribbling also occurred but his opposition was directly in front of him. The ball clunked the rim.
Had he taken that time instead to compose himself and get into his shooting rhythm, the clunking may have been avoided. But that would require deciding to shoot in the first place. Choosing to follow his gut instinct first and then following through with selecting the next best course of action.
People overthink their way to the worst outcome given a multitude of choices. Even if you make a decision don't be fooled into thinking that the decision itself will lead to the best possible outcome. It will not.
When my girlfriend and I ended our relationship, I looked forward to spending the extra hours after work, working on my side projects. I saw this extra time I got back as the best possible outcome. I got next to nothing done. I short circuited my brain into thinking that the outcome would lead to the results, forgetting about the follow through. Setting actionable items, blocking off time to do the work, and charting a path towards progress.
With that in mind, there will be moments in life where you will have to balance the need for making fast decisions and well-informed decisions. The vast majority of decisions in life are not those that require you to be well-informed.
Make your decisions fast. Go with your gut instinct. Utilize the computing power of your brain to choose the next set of actions. Even the worst choices could have favorable outcomes.