I lost 20 kgs in the last year, and feel much better for it.
Would like to say that it is due to exercise, but I am too busy and too lazy to do that , so I completely changed my eating and drinking habits.
Fresh fruit for breakfast, mostly bananas and mango, sometimes in a drink with honey and low fat milk.
No lunch, no snacks
Chicken or fish for dinner with small salad. Low fat yoghurt
Drink only water, some herbal tea. No coffee, no sugar, no beer, no soft drink.
At 5'6", you should weigh under 75 kg.
I don't miss food at all, and even when I go out for dinner follow the same rules. The good news is I saved a shitload of money, but the bad news is that not many clothes fit. My new jeans are 32 " down from 38".
You can do it billy, it is all about what you eat. And drink.