My tips are
1. Stick to the diet
2. Don't weigh yourself in between "official" weigh ins
3. Experiment with splitting packs and doing recipes for crisps etc. Discover psyllium husks for making packs go further
4. Keep one eye on the ball, and the other on the big picture.
5. Make yourself a large graph. sticking pages out of a graph book together. 1 square = 1lb up the side and 1 square = 1 day across the bottom. Record your losses each week in the appropriate square. Draw a dotted line at the rate of a 4lb loss each week, and this will give you some idea of how much you will weigh on any given date in the future. Your total loss will often be below the dotted line, at least to start with, but overall, this projected weight loss will keep you focussed. It is especially useful on a "not so good" week - FORCE yourself to look at it until any negative feelings have gone, and you can focus on your achievements instead of the disappointing week.
6. Be as active as you can.
WELL DONE!! Ann xxxx