There are wonderful benefits from being a Christian, and even when life is difficult there are moments of sunshine! Here are some of them:
Our sins are forgiven when we confess them, which takes away the guilt, although we still need to put things right if we've done something wrong. (See 1. John 19. )
The Holy Spirit helps us to fight our temptation to sin again. (See Hebrews 4.15-16)
At our heart there is peace even when things may not be perfect, because God gives us peace. (See Romans 8.28)
When things are difficult God is there to help us. (See Psalm 23)