I want to lose weight

And how do we do that if your diary is locked?

Here are some useful links for you to start educating yourself:

This calculator will not only show you your BMI at any weight, but how many calories you need to maintain that weight, and how many servings of the various food groups you should eat.
https://www.bcm.edu/cnrc-apps/healthyeatingcalculator/eatingCal.cfm

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

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

http://community.myfitnesspal.com/en/discussion/819925/the-basics-dont-complicate-it/p1

http://community.myfitnesspal.com/en/discussion/872212/youre-probably-eating-more-than-you-think/p1

http://community.myfitnesspal.com/en/discussion/833026/important-posts-to-read/p1