Joy reigns in the believer's heart insofar as he has crucified the sinful flesh. When we're consumed by sexual immorality, excessive indulgence in sinful pleasure, anger, envy or drunkenness, joy is far away. And although these do not bring joy, they appeal to a side of us that will never be satisfied by their pursuit. Drunkenness of any kind is never satisfied and yields only the rue of hangover or the disappointment of poor choices' outcomes.
Experiencing joy of this kind is a two-fold process. First is to crucify the sinful flesh. Denying the impulses to self-service, cheap thrills, and emotions' reign. Second is to lean into the Holy Spirit's presence in our hearts, through the word of God and prayer. All this is a matter of faith. Looking beyond the glitter and glory of the world's lure, we attach our hearts to God's promises, goodness, grace, and faithfulness. And his love.