We are in the world to fulfill our destinies. We are to fulfill our purpose. The destiny that we are pursuing is the purpose of God for our lives. We are not just existing, we are existing for a purpose. God created us, we didn't create ourselves. We didn't make ourselves that is why we should not just waste our lives as we like.
Everything that is wasting our lives, we should avoid that. We should not help the devil to destroy our purpose for life. The purpose of God for our lives is to be good and useful in life. We have good works which God has ordained that we do. Anyone of us who allows bad characters and addiction into our lives, we are helping the devil to kill our destiny.
Addiction is a destroyer. Those substances which some of us are inhaling are not helpful in any way. They are damaging our biological and mental systems. They can't make us fruitful and useful in life. So, stop addiction if you are trapped in it.