I quit making New Year's resolutions a long time ago. I love the idea of New Year's Day, a clean slate and all that, but if you live in the northern latitudes you may understand that the darkest coldest time of the year is not the time to tackle vices with any success. The vernal equinox might work better for that. :)
But in the spirit of the season, I offer one resolution that so far (for 2 days) I have kept: I will play a musical instrument every day. I don't care if it's one minute or four hours, just the act of getting an instrument out of its case, holding it lovingly, and playing a note or song or two is something that brings me joy. And why not take the time every day to do something joyful?