How can I redeem myself for I have sinned?

The very fact that you are asking this question is itself the beginning of redemption. The Guru Granth Sahib tells us that only a person whose heart has been touched by Divine Grace even thinks to turn back to God.

You Are Not Alone in Having Sinned

Guru Ram Das Ji wrote with great humility:

"My demerits are so many and numerous. I have sinned so many times, over and over again... You, Lord, are the Merciful Treasure of Virtue. When it pleases You, Lord, You forgive me." (Ang 167)

God's Mercy Has No Limit

The Guru Granth Sahib is absolutely clear: there is no sin so great that God cannot forgive it. Waheguru is described throughout Gurbani as the Patit Paavan, the Purifier of sinners.

"Even the worst sinners are saved, if they take to the Sanctuary of the Lord." (Ang 801)

The Five Steps to Redemption in Gurbani

1. Acknowledge your sins honestly, not to a priest or intermediary, but directly to God. Gurbani calls this Ardaas from the heart.
2. Turn toward God with sincerity, God does not require perfection, only sincerity.
3. Meditate on the Naam, Naam Simran is described as the most powerful cleanser of the soul.
4. Live righteously and serve others, Seva is how the soul is rebuilt.
5. Do not return to sin, "Truth is the medicine for all; it removes and washes away our sins." (Ang 468)

God Is Waiting for You

God is not angry with you. He is waiting, with infinite patience and love, for you to come back to Him. You do not need to be perfect to come to God. You only need to come.