Try nutrisystem - it worked for me.

eat lots of sweets and never exercise

Get rid of your scale....

Cut soft drinks out and drink more water and juice

The key is: Diet Diet Diet, then exercise:
You need to eat 5-6 small meals a day. Eat some protein with each meal! Cut out all refined sugar!!! Also add more fiber. The fiber and protein will fill you up, helping you to cut down on your unhealthy eating. Also by eating more than 3 meals spread out through the day you will kick your metabolism in high gear. Here is a general meal for a day:
Breakfast: 2 poached eggs
whole wheat toast
1/2 cup fruit
Snack: Cottage Cheese with veggie
Lunch: Turkey, lettuce, tomato, whole wheat bread sandwich
1/2 cup fruit
Snack: Protein Shake
Dinner: Turkey Burger ( no bun )
Side of brown rice
Side of Broc.

Then exercise regularly 4-5 days a week. Do both cardio and lifting. But on days that you do both. Do lifting before your cardio and you will maximize your fat burn. Cardio can be a sport: basketball, soccer, football, anything with losts of movement. Golf is a no no.
So Example :
Monday - 30 mins lifting then 1 hr cardio
Tuesday - 1 hour lifting
Wednesday - Rest
Thrusday - 30 mins lifting then 1 hr cardio
Friday - 1 hour lifting
Saturday - Rest
Sunday - 30 mins lifting then 1 hr cardio
For exercises check out:
http://www.xercisefactor.com
They have hundreds of exercise video clips
Also check out the XGen to randomly generate a workout routine. You have to sign up, but it is free.