Start every day with a prayer for your child and for yourself that God will guide you as a parent and help you find the right way to handle problems when they arise. Let your teens know what is expected of them in advance, not after they've made a mistake. Remember that parents are their child's first and most important teacher. Teaching our children about God and His plan for them is part of being a parent an honor and privilege, not a chore. You shall teach them diligently to your children, and shall talk of them when you sit in your house, when you walk by the way, when you lie down, and when you rise up.
Every child challenges their parents in different ways.
What works with one child will not necessarily work for the next, so be prepared to make mistakes. Mistakes are meant to be learning experiences, not permanent guilt trips. Join parenting classes at your church, or if they aren't provided, ask the minister or elders at your congregation to consider starting one. Sharing parenting experiences with other Christians while searching the scriptures for answers can build confidence and provide emotional support. God expects us to correct our children, but He also demands that we do it with love.