In every aspect of our lives, the best way to live our lives is to follow the way of the gospel of Jesus Christ. It is the way of the gospel that will lead us into a life that will please God. If our life pleases God, then we can be sure that our life will have meaning. This is because we do not have meaning in our lives if are not living according to the dictates of God.
Whether you are a teenager or an adult, you are to follow the teachings of God in the Bible in order to have a good a meaningful life. There is no other way that we can fulfill our lives if we are not doing the things which God is asking us to do. We must live our lives according to the doctrines of Jesus Christ. The doctrines give us good principles that are capable of building our lives gloriously.
The way of the world cannot make one's life to glorify God. Any life which does not glorify God is not going to see goodness. So, the best way to live our lives is to follow the gospel.