Regret especially when we can’t do anything about it is the worst that can happen. What is worse than being 80 and full of regrets. Because we all should strive to avoid that at any cost, there is a certain strategy we can take to make better life decisions.
I call it the Regret Minimization strategy which simply means doing the thing you will regret the least when you are 80. Now obviously we don’t know that in advance but we often can make a pretty good guess.
For the most part that means doing instead of not doing. We regret the things we never did much more than the things that we did and a failed at. Passivity is much more painful. Therefor once you identified something worth doing just do it. Rather fail than to live with the feeling it might have worked.