B improve your posture and appearance
Antibiotics can have many side effects to ur body like dizziness or headaches
but if u were to abuse stronger drugs they can cause hallucinations, seizures, stomach pain and worse
Find a new hobby to start and maybe do a self transformation and create a new image of yourself. Try to always think of the positive things in your life
Joes way of hanging out with the wrong people can be a big factor of the problem with his substance addiction