for exercise check into a program called cross fit. it can offer a diverse workout where u don't get bored doing the same thing everyday. and it is quick most workouts last 30 -40 mins, 2-3 times a weak for me. i'm down over 60lb
eating right is just as important, eating less overall but more often through out day kicks your metabolism up. i know a couple pro boxers that cut weight for fights, Ive seen them drop 30-40lb in 2 months and they both say you have to eat to lose weight. if you don't eat your body goes into starvation mode, metabolism tanks and every calorie is stored.
i witness one of them weigh in on thurs morning and by fight time fri night he gained 18lbs, talk about a yo-yo.