I don't have resolutions, as such, but I do have some goals. My biggest being that I'm running a marathon this year, but I set that goal over a year ago. The time and place are unclear right now, but it's happening. Having run two half marathons in 2015, both hitting my goal for under 2 hours, I'm confident I can finish a full marathon and hopefully do it under 4 hours. It's still hard to think about running for 4 straight hours, but I can clearly remember when running for 2 hours seemed just as daunting so it's all relative, I suppose.
I'm also looking at trying to set a personal growth goal every month. In January, I'm going to wean myself off of coffee for a week or so. I still love coffee, but it would be nice to not HAVE to have coffee. The goals for upcoming months will be different, but will line up with my criticisms of New Year's resolutions, primarily by being more timely and concrete with the deadlines.
If I have some unsolicited advice, it would be to be as diligent about keeping track of your accomplishments as you are about your goals. As 2015 was closing and I approached turning 24, I felt like I hadn't gotten much done, but then I started listing what I had done and realized that my Michael Jordan year had been pretty damn productive: