2. Find your inner motivation

No one else can make you lose weight. You must undertake diet and exercise changes to please yourself. What's going to give you the burning drive to stick to your weight-loss plan?

Make a list of what's important to you to help you stay motivated and focused, whether it's an upcoming vacation or better overall health. Then find a way to make sure that you can call on your motivational factors during moments of temptation. You might want to post an encouraging note to yourself on the pantry door or refrigerator, for instance.

While you have to take responsibility for your own behavior for successful weight loss, it helps to have support — of the right kind. Pick people to support you who will encourage you in positive ways, without shame, embarrassment or sabotage.

Ideally, find people who will listen to your concerns and feelings, spend time exercising with you or creating healthy menus, and share the priority you've placed on developing a healthier lifestyle. Your support group can also offer accountability, which can be a strong motivation for sticking to your weight-loss goals.

If you prefer to keep your weight-loss plans private, be accountable to yourself by having regular weigh-ins, recording your diet and exercise progress in a journal, or tracking your progress using digital tools.