"We need to reject the desire to identify only with those who are sinless. How could the Church have excluded sinners from her ranks? It is for their salvation that Jesus took flesh, died and rose again. We must therefore learn to live Christian penance with sincerity. By practicing it, we confess individual sins in union with others, before them and before God."
-Pope Benedict XVI
The process of seeking, receiving, and celebrating God's mercy and forgiveness is meant to be source of joy. Has it been a while since your last confession?