Step 1...
Determine your daily caloric intake.
Step 2...
Go over the list and decide which foods to cut out or reduce.
Step 3...
Seek out alternatives to the unhealthy foods you've identified.
Step 4...
Plan your meals.
Step 5...
Watch your portion sizes.
Step 6...
Graze on healthy snacks.
Step 7...
Get more fiber.
Step 8...
Drink plenty of water.
Step 9...
Exercise.
Step 10...
Perform low impact aerobic activities.
Step 11...
Pump some iron.
Step 12...
Be realistic.