How to get from A to B

Are you this bloke?

You're out of shape. 
You're carrying excess body fat. 
You're heavier than you need to be.  Heavier than you'd prefer to be.
You are out of condition.  Unfit. 
You're weaker than you'd prefer to be. 
You have less endurance and energy than you'd prefer to have.
You don't look as good as could.
You don't feel as good as you could.

You want to do something about it.
What do you do next?