Life is too short so I would advise you to do everything you can to enjoy it as much as you can as often as you can. Don’t spend time doing things that are of no value to you & don’t waste time with people who aren’t good for you.
The only guaranteed thing in life is death, we are all going to die so make the most of every day you have on earth alive. Always try to be the best version of yourself possible & live with no regrets.
You are right, life is indeed very short. But The term #leave with no regret# is detrimental to the ecosystem of life. You can't leave life without regret. Regret and mistake are the two connected words that guide both the human power of growth and Conscience. If man does mistake and regret his act, he learns and there after grows closer to the sphere of perfection. Life without regret is a life without empathy and veneration to humanity in circle. If you don't regret your mistake for ones, it means you are perfect. And no one is perfect except the supreme being(God)..In my own opinion, Don't rush life means, everything one does should be teleguided by the fear of God.