With the list of things that you need forgiveness for that you have compiled over the last three days, meet a trusted friend. With the list of things from your CHILDHOOD, your ADOLESCENCE and your ADULTHOOD, simply read them out to your friend, do not try to explain any of them, just read them out for what they are.
Pray this through together. Pray for your forgiveness. I recommend destroying the list once you have prayed as a metaphor that you have been forgiven.
You may want to repeat the phase going over your adulthood and praying it through at another point this year.