Quoting ~Brittany Lee~:" How much weight did you lose in 5 months?"
you can safely lose about 40 lbs in 5 months. I think that's about how long it took me. I ate about 1200 calories a day, and worked out.
if you use Myfitnesspal .com it really helps track what you eat, how much you work out, and how much extra you need to eat so you don't put your body into starvation mode