That's a very big question and one I spend far too much time pondering and not nearly enough deciding on big answers.
On the one hand there's the view that 20 years from now you will only regret the things you didn't do, But then again you can't do everything, so what do you decide to leave out, and how much will you regret that decision?
I don't really buy into the whole bucket list idea, but if you asked me what I'd like to do before I die; I'd say something like being able to run along my favourite river for at least the next 30 years, watch the sun rise over mountains in the east and see it setting over the western horizon. Spending time with friends and the people I love, and in some small ways make the world a better place.
Wishing you success if you're making New Year resolutions and if you're not, have a great 2016 anyway.
a man of leisure
30 minutes ago