How do I convince people I'm not on drugs?
depends on who. If it's your parents, get 20 bucks from them and pick up a home drug kit. Show it to them, and get a male to stand by the bathroom when you pee in the cup, then show them, and wait for the results, takes about a minute.
If it's an authority person at school, offer to take a drug test in the nurses office.
If it's your friends they should know better.
Dress and carry yourself in a confident manner...Take care !!