I am Overweight and Lazy. I don't want to waste myself. What do i do to break this lifestyle?

smoking and drinking at the age of 15 is NOT normal. You need to stop both those things. Hangovers will make you lazy. Smoking makes your heart work twice as hard. Your crowd may do that but that means you are in the wrong crowd. Change friends hang out with students who work out, DON'T DRINK, DON'T SMOKE. This is just a spiral downward. If you are looking to take drugs that will just make things worse. I think you are depressed if you feel a need to alter your reality so much. Can you afford to go to a psychiatrist or talk to a counselor. Drinking, smoking and wanting to be a druggie at 15 is just pretty sad and horrible. Change your ways. Clean up your friendships and treat your body as a temple.