Both Captian.Q and wishtobflying had the best advice.
Unfortunately there is not quick healthy way to lose weight. If you don't do it properly it wont work and you will never learn how to do it.
Unfortunately we are not really taught at school how to eat and excercise properly.
All the points that Captain.Q listed were exactly what you should. I would only disagree with the exercise part and suggest that you really go for it. Really push yourself for a 20 minute cardio workout 3 times a week. Don't make it that you are gasping for breath but make sure it hurts otherwise it's a waste of time.
The point with weight loss is that you need to think of an onion and how it unravels itself layer by layer. Your body fat does the same thing and will come off in layers and not just from your tummy, bum or thighs which is wear we usually want to lose it.
Anyway, I could go on and on. I spent a year re programming my brain to take on board some new habits.
I printed out some great words that I enlarged and pinned on the wall throughout my weight loss challenge and that was:
"If you want to live in that body, you've got to pay the rent"
Committment and focus and you can do it!!