Monika, welcome to FitDay and the forums!
Congrats for deciding to take control of your situation. I can attest that FitDay works well if you come up with an eating and exercise plan that works for you and you have the commitment to stick with it.
There's lots of folks here who are happy to lend support if you need that as well (I sure do!). If you have any questions about the site or anything, just ask.
47 M 5'8"
May 4, 2010...... 440? lbs. (Start FitDay Size 60 Jeans)
June 19, 2010.... 393 lbs. (First Weigh-in)
June 19, 2011.... 229 lbs. (164 lbs. gone in one year :-)
Current Weight... 185 lbs. (Size 36 Jeans)
Next Goal 169 lbs. (07/04/12)
Ultimate Goal 165 lbs. (12/31/12)
The best exercises for weight loss are Fork Putdowns and Table Pushaways.