Your son may have different interests than you.  Don't discourge these interests instead embrace them and his area where he flourises.

Don't give him everything.  Teach him to work for things he wants. Otherwise it will become difficult for him to adjust his mind when he did not get what he wanted

Discipline him  Show him right and wrong.  Explain through discipline that there are consequences for bad actions.

Set a good example  Sons look up to their father.They pay attention to every move you make.

Don't let him down   Eat healthy,treat your wife right,workout,spend time with family.