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The "sacrament of reconciliation" is never in Scripture, so not necessary for salvation nor Christian maturity.
Christians have something far better - forgiveness, and the ability to boldly approach the throne of God as His saved sons and daughters.
"If we confess our sins, He is faithful and just to forgive us our sins and to cleanse us from all unrighteousness."I John 1:9
HMMMmmm...
You forgetting or purposefully omitting the power he gave go the Apostles after the Resurrection in the upper room. That is exactly where the sacrament was first born.
Your belief matches what Jesus’s enemies said about him.