Diet Pill That Works

I'm About 20 Pounds Over Weigth. I Want To Loose This Wiegth In A Healthy Way. I Know That 20 Pounds Isn't That Big A Deal But I Want To Be Happy With Myself. I Have Been Working Out And Trying To Get Healthy But I Cant Seem To Loose The Weigth. What Kind Of Workout Works The Best And Waht Diet Pills Work Too ?