it is harmful to the body, lungs, nasal passages, etc. It is a poison. If you aren't setting a world record you don't need it. Especially when you are still a teenager. Just keep lifting, eating and resting and the strength will come. I know, but I just never really get psyched up at all, and for max attempts, I wanted to try it if it wasnt harmful, but you seem to think otherwise
You have a great start already. Try slapping yourself in the face, pushing your friends around or listening to pantera if you need to get pumped up. I lift on my own but maybe Ill try the face slapping, lol