I sure do!! I don't have a 95% success rate, but every single year brings new challenges and new dreams I want to achieve and I'm not discouraged by my previous failures. I've always learnt amazing things about myself and the topic of challenge even when I've failed. Usually, I have one or two things in my resolution list that I know would be an extra challenge for me, and even though I know I have more risk of failure on those I ALWAYS approach it expecting success, sometimes I make it, sometimes I don't, but at the end I always win the experience of taking myself closer to where I wanna be.
My philosophy is one of constant learning, taking seriously the fact that I want to become better everyday, so at the end of the year I spend quite some time doing careful introspective, noting how I succeeded on some of the resolutions and why I failed in others. Then I reevaluate the things that remain important for me and make plans to make it happen next year.
Btw Iburmaster's technique of having lists as reminders works wonders to stick to important goals.
I would say that when I set very specific goals like that I also have a pretty good achievement rate (90+), but when I think of my new years resolutions I usually think of personal and spiritual development.
As you can tell New year's is a big thing for me so at the end my list is a good mix of goals and new habits I want to incorporate into my life for personal growth in the next year.