Will Ilose 10 pounds per week with this diet?

I seriously have gotten mega fat. Like no joke. My mom has this GORGEOUS blouse to a sari && my dad is going to India && while he's there, he's gonna get a half sari made. So my mom gave me her blouse to try on. And it didn't fit me! I have become disgustingly piggy that I can't fit into my mom's old sari blouse. So, my question is: If I dont eat anything except water (all day) and salad (for lunch only- skip breakfast and dinner- i already skip breakfast so dinner shouldn't be hard to skip) without dressing for a week? Can I loose 10 lbs at least? I have to!!!! Please help. If this wont let me loose 10 + in 1 week then is there another diet I can do- like no pills or drink or whatever? to loose 10+ lbs in a week? Please help me!