Have you tried the Lil Jack Workout ? http://www.youtube.com/watch?v=TKCGe2Ezr��
Honestly, for your height and age you really don t want to weigh much less than you do. If you re unhappy with how you look maybe you should focus on toning up your muscles, Run 1 or 2 times a week, then spend 3 or 4 days working with light weights. You said you can t get to the gym, maybe you can buy some light weight dumbbells and a workout book for home.
you are NOT overweight at all but try sparkzteens.com even though you are 19 just check it out it is great. P.S maybe you should just tone up instead of lose weight
if u wanna drop quicklytry this thing called HIIT on your treadmill