Lose 20 lbs!

Sounds great! However you might want to be more realistic. What's the rush? You probably didn't put on 20 pounds in a month so why try to lose it in that amount of time? Keep in mind that 20 pounds in 1 month means you need a deficit of more than 2,000 calories per day. Based on your picture, I'd say you only have about 20 pounds to lose so that's just not realistic at least not for the long-term. Here are a few threads to get you started on the right path, which would be 1-2 pounds per week.

http://community.myfitnesspal.com/en/discussion/1080242/a-guide-to-get-you-started-on-your-path-to-sexypants#latest

http://community.myfitnesspal.com/en/discussion/1235566/so-youre-new-here#latest

http://community.myfitnesspal.com/en/discussion/1161603/so-you-want-a-nice-stomach#latest

http://community.myfitnesspal.com/en/discussion/10012907/logging-accuracy-consistency-and-youre-probably-eating-more-than-you-think#latest

You've taken the right first steps just by joining, so good luck!

I would like to lose 20lbs but not in a month...