Losing weight for a 17 year old teen?

I am a 17 year old kid with a fatish body( mostly my chest, stomach, back, and buttocks. I am asking if i should buy weight loss pills(Oxy elite pro) and i am going to buy an ab belt for my fat areas. my current weight right now is about 180lbs which is overweight. I think i have developed a type disease called the "munchies" where i eat junk food everyday which i will cut back once i get started on. my question is, will this comboniation work? my goal is to get to 150lbs by summer ends.