Lose 12-18 pounds in 9 weeks?

I am 13. I weigh 110 pounds. I am 4'10". Please help!!! I really want to lose like 15 pounds... I really want to be like 90-100 pounds. Please HELP! I really want to look really good in a bikini!!!! I have lost 12 pounds since April, but I don't feel like its going fast enough. I want to lose like at least maybe... 1-2 pounds a week. :) If 2 pounds is possible please help. Please give diet plans and exercise plans!!!! Please, please, please diet and exercise!!! (I dont mean diet, like literal diet, i meant like menu plans and stuff like that.) Thanks to everyone who answers!!!!!!!!!!! Please, please, please help!! :)! I realllly want to lose weight! Thankssss!!!!!