You've probably already heard that old tip about taking stock of things you're grateful for, or things that are good about you. This is a fabulous tip, and it's always good to remember that you have some good qualities. But instead of just taking stock of the good, how about also composing a list of things you'd like to change or improve? Be kind, and constructive, but real. Acknowledging the weaker points in your life and addressing them can help you make improvements.
When you've made your list, be real with yourself about starting to improve these things. Even if you just stick to your guns for a day or two, revel in the fact that you have the power to change! You are taking control of your life and working to get to a goal. Enjoy that. The journey is just as important as the destination, so savor each part of your process.
Use other people, but "in a good way." You have a lot to offer other people. Give freely of yourself, and don't be afraid to ask for help once in awhile as well. We've all been put in one anothers' paths to give generously and to receive graciously. You may not always get what you want, but it never hurts to ask.
Treat others with respect, and make everyone around you feel important. This will ensure that you're treated largely the same way. If those around you do not respect you in return, it may be time to reevaluate yourself as well as your relationships with others.
Be driven in your efforts to improve, but forgive yourself any setbacks. Just stick to it!