The Church holds that simple truth as the basis for everything she believes.
That we are sinners, that sin separated us from life with God and that Jesus died for those sins and because He did, we can share in heaven with Him.
Nothing the Church teaches takes away from that truth.
.
God says that sins against Him have a penalty of spiritual death. Separation from Him for eternity.
The only way we can rid ourselves of that penalty is excepting the only way He provided for us, His Son’s blood that has wiped away those sins after we confess those sins to Him.
Part of that involves us forgiving other humans their sins against us. Jesus explains that in MATT 18:15-35
Your Church teaches you have to confess your sin or sins against God to a man and then allow that man to determine a punishment for that sin depending how serious of a sin that man thinks it is.
The penalty can be anything from 10 Hail Mary and 5 Our Fathers to expelling you from the Catholic Church.
You have to continually do this until the day you die.
How can you say this teaching does not take away from the truth?