Change your attitude!
I keep hearing people talking about being on a "health kick" or a "diet". These words bother me because I can sense "failure" as soon as they are uttered. These folks want to lose weight and their measure of success is tracked on the scale. And, honestly, the scale isn't the one and only indicator of health but to some, it seems to be. Changing your attitude about your goal will go a long way. If you're only adopting a healthy lifestyle for a short time to lose weight or to look a certain way, it will be hard to keep going.
Question: What happens if/when a person doesn't see results quickly enough?
Answer: They give up.
Weight loss is a great goal, but unless you have something else to motivate you, what will keep you going if the scale doesn't budge? Losing weight in the proper (read: long lasting) way takes time so you need to figure out how to motivate yourself in the meantime. Your best bet is to find more reasons than weight loss to be healthy. Some great examples are having more energy and less stress, strengthening your heart and lungs, and/or wanting to live longer to be around for your kids...grand kids...great grand kids... If you ask me, those are some darned good reasons, so change your attitude and stick with it. YOU CAN DO IT!