If that was sarcastic... you got me.
Life is not an optimization problem, where we maximize happiness. I prefer to just let life flow in its natural waves, sometimes correcting course to achieve my goals.
Regrets, I've had a few, but then again, too many to mention…..
I think ones goal should be to live an optimal life, integrating good over time.
Reviewing the wisdom of those who have done more than us (lived long and are facing death) seems smart.
While I don't want to live my life in fear of regret, I often use a mental model for decisions - "if this is wrong how much would I regret it," to weigh the choices.
I personally don't want to be on my deathbed and say I wish after 35 I had spent more time with my loved ones - I want to be able to say that I spent a good amount of time with my loved ones and enjoyed it.