Then here are three top tips in less than a minute.
First, make a pledge by telling your friends and family what you're trying to do.
This not only creates a fear of failure but also a sense of support.
Second, create a detailed plan by breaking your goal into a series of smaller steps, so don't just say you going to the gym more but rather you're going to go on Tuesdays, Thursdays and Sundays, and at exactly 6 p.m.
Third, plot your progress.
For example, you might try keeping a journal,using an app, creating a spread-sheet, or even sticking updates to the fridge.
And so next time you want to achieve the goal, remember the 3 Ps: pledge,plan, and plot.