Kick The Habit - Take Baby Steps
There is no need to rush, you need to take your time. While going through this process, it is essential that you understand that correcting an addiction will surely take time, especially if it is longstanding. Take it one day at a time, and congratulate yourself with every small success.
You could start by reducing the amount of sugar you put in your daily morning drink (coffee, milk or tea). If you are used to five teaspoons a day, start taking 3 instead. Next, incorporate fruits and vegetables in your diet, as they are healthier forms of sugar. Then, you can decrease your intake of processed foods, as they hide a huge amounts of sugar.
Slowly but surely, you will realize that you are progressively diminishing your sugar intake and your cravings do not occur as often as before.