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.
Most of the people I know who work out seriously do so because they have such an amazing outlook on life. To be who I want to be I'm going to work out to be more positive more active. It's proactive.