The Regret Minimization Framework: How Jeff Bezos Made Decisions
medium.com
medium.com
That said, the most reliable way of minimizing regrets when faced with a decision of doing x vs not doing x, is to do x. Inaction is not something your future self will be able to rationalize, and that's why missed opportunities are so painful.
In other words, don't think whether you'll regret doing something. You most likely won't. Worry about NOT doing something that sounds like a good idea, because you will probably regret it. Don't try to predict your future emotions because you will fail. Just do it. Do that thing you're wondering about.