"You can see in Judas' behavior and attitude almost everything that takes place in confession. There is only one thing, the most important thing, missing and that is faith in Jesus' mercy. That is why Judas' 'confession' was so sad, tragic, and ended with despair and suicide." (The Gift of Faith, Third Edition, pg. 85)
Jesus' mercy was there for Judas. He refused to believe in it. Jesus' mercy is there for you too.
Do you believe in His mercy for you?
Claim His mercy that is waiting for you in the sacrament...He longs to forgive you. If you have received forgiveness do not doubt His love which is there, allow Him to heal you.