Brett Hoebel — American Celebrity

Brett Hoebel, also called "El Capitan" is a fitness expert and was a trainer on the U.S. television show the Biggest Loser season 11. He coached the majority of the contestants on the Red Team that season and was touted as one of the "Unknown Trainers" with a Mixed Martial Arts background. After his role on Biggest Loser, he was subsequently chosen to be one of the health experts on the Food Network TV show Fat Chef, which follows overweight chefs in their struggles to lose weight over a four-month period... (wikipedia)

If I could give one tip for people - it's not an exercise or nutrition regimen. It's to walk your talk and believe in yourself, because at the end of the day, the dumbbell and diet don't get you in shape. It's your accountability to your word.
You need to put what you learn into practice and do it over and over again until it's a habit. I always say, 'Seeing is not believing. Doing is believing.' There is a lot to learn about fitness, nutrition and emotions, but once you do, you can master them instead of them mastering you.
If you think of exercise as a 60-minute commitment 3 times a week at the gym, you're missing the point completely. If you think that going on a diet has something to do with nutrition, you don't see the forest through the trees. It is a lifestyle. I know it sounds cliche, but you have to find things you love to do.
If you don't have an emotional connection to why you are trying to accomplish your goals, the odds are you won't reach them or will quit trying.
At the surface, many people's goals are to lose weight, tone up, feel better, etc. But superficial goals get superficial results that usually fade. Dig a little deeper, and the 'why' is usually unveiled: to be more confident, to be more happy, to feel sexy again.