Stick with it, everyday write everything into MFP, and remember when you go over and dont write it in, the only person your cheating is yourself.
Walk, and walk, and walk, start off with baby steps and go a few metres more each day.
If your working, make your lunch the night before so that you dont just grab a high calorie sandwich.
Use lighter than light mayo as butter, Danish Bread ( warburtons dosnt go stale quick)
I keep in Quavers as a must have snack
I make my own granola, and have that every morning with low fat natural yogurt.
DO NOT SKIP BREAKFAST
Remember a 'proper meal' such as meat. potatoes and 3 veg, is not that high in calories.
Drink, drink and drink, I dont like water so drink sugar free squash, in a litre bottle, I can drink ore that way.
And good luck.
I signed up with MFP on Boxing day. I was 17 stone and a size 24
I am now 10 stone and a size 14 :)
Pics on Profile.