OP, your goals are doable but maybe for the wrong reasons. If you get skinny and attractive, will you actually be happy? Why exactly do you want to more slim? Because the people that will end up talking to you will be the shallow motherfuckers that need a good kick in the nuts. I do however wish you luck as it is an admirable endeavor.

SUGGESTION:Try to make a couple of friends before the change, so when you do have a coke bottle figure, you will actually have real friends.