How i help someone to be good

Two years age i was living with my friend who always had bad morals.One day i called him and try to advice him about this what is doing not good because he usually smoke,steal,involved in stealing and many things.
         I had a meeting with him and tell him that nomata how bad you want to be just to be noticed is not going to help you,i know teens we like to be noticed but i am pleading you pliz to stop this.
Few days ago i have herd that is changed and now is good person and now ussualy advices teens about result of bad things we do as teens.

Location: Misyani, MAchakos, KENYA