Be a doer, not a talker
That's #32 on Sam Altman's list of things learned before turning 30. There are many of these lists out there, but this is one of the best ones I've seen in a while. Here are a few that really resonated with me:
#4 - Work very hard—a surprising number of people will be offended that you choose to work hard—but not so hard that the rest of your life passes you by. Aim to be the best in the world at whatever you do professionally. Even if you miss, you’ll probably end up in a pretty good place.
#10 - However, as valuable as planning is, if a great opportunity comes along you should take it. Don’t be afraid to do something slightly reckless. One of the benefits of working hard is that good opportunities will come along, but it’s still up to you to jump on them when they do.
#17 - If you think you’re going to regret not doing something, you should probably do it. Regret is the worst, and most people regret far more things they didn’t do than things they did do. When in doubt, kiss the boy/girl.
#25 - Remember how intensely you loved your boyfriend/girlfriend when you were a teenager? Love him/her that intensely now. Remember how excited and happy you got about stuff as a kid? Get that excited and happy now.
See the full list here.