Losing weight in less than 11 weeks ?

How can I lose some weight in that amount of time? And be specific. If you have any stories about how you lost weight quickly,tell me . And if you have exercise videos, show me them. Hahaha. BE DETAILED . I need the help (: !

Also, does anyone have any tips on removing stretch marks? I'm already losing weight and there starting to show up. I really don't like them =/ .
Losing weight in less than 11 weeks ?
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