It will be painful.
That's probably the most important lesson you need to learn before starting.
1. log your weight everyday on a graph
2. eat very small portions, no carbs
3. when hungry force yourself to drink a large glass of water
4. drink hot tea at scheduled intervals
5. eat lots of popcorn, get the raw grains from Safeway and put them in microwave for 4 mins in a large bowl with a cover