Do what I did to break my mini-stall:

1. Cut out artificial sweetener including Splenda
2. Cut out nuts and nut butters
3. Cut out most LC products and stick with natural foods
4. Make sure you are getting 72oz water +
5. Eat light dinner and no snacks after dinner - biggest meal at lunch
6. Start exercising - - amazing what that does
7. Stop diet drinks and caffeine
8. Cut out bars and LC chocolates

Its time to get down and dirty - 4 months is definitely enough time to drop 20 lbs! You can do it!