I know right now you're probably telling yourself that you will never accomplish the resolutions you wrote. That its completely pointless for you to even try. And with that attitude, you certainly won't achieve anything. So get rid of all your doubts and start out with a clean slate, much like the new year.
Forget about the past, and forget about the other times you may have tried to change something. This time is different. This time, you will get the results you want. But first, you need to realize the great potential you have and put it to good use. You can truly accomplish anything if you put your mind to it.
Confidence is the key to change. Stand tall and strong, knowing you can face whatever obstacles life has to throw at you. Take pride in the obstacles, because its all a part of the journey and some day it may make a really great story. Have a good support system, to help you up when you get knocked down. Even though you are strong, know that its okay to ask for help. Write your goals down and hang it in plain sight, that way you're always reminded of your goals because its never out of sight.
Think about how proud you'll be when you accomplish your goal and allow it to motivate you for when life is low. Remind yourself that change is good and growth is essential. Think about the look on your haters faces whenever they see that you did what you set out to do. Your proved them wrong. You're strong. You can dream big. You can do this.