You might need to Change your Attitude.

I was so upset with myself and my body before I became a Beachbody Coach. I knew and I wanted to change things.  The support I get was what helpped me make the attitude change wich led to my physical change. This is a good article which brings out a point that gets missed.

Making Friends with Your Body: The Roots of High Self-EsteemThere’s no doubt that feeling comfortable in your own skin is an important part of that “feeling-good-about-yourself” goal (also known as high self-esteem) you're trying to achieve. But the more you learn about the roots of self-esteem, the clearer it becomes that what helps the most has very little to do with achieving some abstract ideal, like a certain weight or look. In fact, there are many, many cases where people work very hard on goals like this—and even achieve them—only to find that they're still unsatisfied and unhappy. What does seem to have major, positive effects on self-esteem is the process of moving yourself—the right way—from where you are towards where you would like to be.

The journey is more important than the destination.

To be a little more precise, the best way to increase your self-esteem is to actively and effectively engage in something that is both good for you and consistent with your expressed goals. Both of these are key elements. If your goal isn't good for you, because it's unrealistic or strongly based on what you think other people want or expect from you (like trying to look like a model when your body can’t naturally achieve or maintain that), then you are going to face problems feeling good about yourself. Nothing you do will ever be good enough.

You’ll have the same problem if your actions aren’t consistent with your goals, like going on an unhealthy crash diet to achieve a healthy weight. To feel good about yourself, you have to treat yourself as if you are already someone worthy of respect and good treatment. If that means “faking it until you make it,” then that is where you need to start.

Exercising the “Right” Way, for the “Right” Reasons
If you are carrying a lot of unhelpful baggage in the form of poor body acceptance, negative body image, or even body-rejection due to excess weight, then exercising the right way and for the right reasons may well be your shortest, fastest, and easiest path away from these problems.

But you’ll need a particular kind of attitude and approach, one that will help you begin appreciating your body for what it can do right now, and allowing it to be your guide and teacher on your journey towards change—not an object of your contempt and ridicule. Here are the basic elements of such an attitude:

• Exercise for the “right” reasons. There aren’t many bad reasons to exercise of course, so in a pinch you should take advantage of whatever gets you going. But certain attitudes and approaches will help you get a better self-esteem boost. It helps a lot, for example, to tell yourself that you are working out because it is good for your body and you want to take good care of your body. When you do that, you affirm that you and your body are friends—not enemies—and you open yourself up for healthy communication with your body, allowing it to tell you what you need. This will work much better than setting out to burn calories so you can get rid of all that ugly fat you can’t stand.
  
  Source- Sparkpeople