I am not shure you could lose 50 pounds by may or june you could lose 30 to 40 pounds and get to a normal weight.I am male and i was near your weight and i am 127 now when i was 155.What i did is eat cereal for breakfast plain cereal like rice crispies,or cruncy corn.For lunch fruit.When i felt like snacking i drunk orange juice or water and for diner i ate a medium portion of what my mom makes and i lose 2 pounds a week.Try it you don't feel like eating a lot.You don't feel food deprieved.Also work out 30 minutes a day try it worked for me.