I'm considered obese and thinking about doing the 3 day diet...?

Im a 23 yr old female, was 135 when i left the army but gained alot of weight, i was 220 and i am 5'5 but ive been eating light and working out everyday and ive lost 5lbs this week. first star off slow and try getting alot of fiber in ur diet. also eat what you want, don't starve just limit your portions... good luck