If you want cure your soul, you need four things. The first is to forgive your enemies. The second is to confess thoroughly. The third is to blame yourself. The fourth is to resolve to sin no more. If we wish to be saved, we must always blame ourselves and not attribute our wrong acts to others. And God, Who is most compassionate, will forgive us.
We who are pious Christians must fast always, but especially on Wednesday, because the Lord was sold on that day, and on Friday, because He was crucified on that day. Similarly, it is our duty to fast during the Lent seasons, as the Holy Spirit illumined the holy Fathers of the Church to decree, in order to mortify the passions and humble the body. Moreover, if we limit the food we eat, life becomes easier for us. Fast according to your ability, pray according to your ability, give alms according to your ability, and always hold death before the eyes of your mind.
St. Cosmas concerning Confession and Fasting