You are right. Confession is primarily for restoring our relationship with God. Of course, it is understood that since the relationship is broken by sin, the way to restore that relationship is, first of all, to have that sin forgiven.Confession , the sacrament of Reconcilliation restores our relationship with God, God forgives us our sins, . People might think, if not familiar with the rite of Reconciliation, it is merely for removing our guilt. I am sure that is not what you meant ROM, but its how I read it.
But we can’t go to confession every day and we sin every day so we might not make it to Purgatory.
Can you explain what you mean please.You’re not supposed to go to Purgatory.