How To Lose 20 Kgs In A Week?! Help!!!?

Ok I Weigh Like 46.6 Kg Its Ok But I Want Too Loose 20 Kgs In A Week And Become Really Healthy. I Am Willing Too Give Up Everything I Eat And Im Not Bothered If It Damages My Body. So What Can I Do??? I Know Its Alot Of Work but I Have Too Try!!! So Please Help!!! Thank You So Much For All Answers!!!