Had a biscuit packet and tea today morning aim is to keep walking till night time and only drink water.

Why dont you opt for ketogenic diet. Its really great.

It worked for me.

You can get information regarding diet plan and foods allowed to eat here.

http://www.doctorshealthpress.com/food-and-nutrition-articles/ketogenic-diet

I would advice you to walk at least 30 mins a day, just to burn some fats. any way its good for all of us.

Dieting must do wisely.