(from Divine Mercy in My Soul by St Faustina)
“Today, the Lord said to me, Daughter, when you go to confession, to this fountain of My mercy, the Blood and Water which came forth from My Heart always flow down upon your soul and ennobles it. Every time you go to confession, immerse yourself entirely in My mercy, with great trust, so that I may pour the bounty of My grace upon your soul. When you approach the confessional, know this, that I myself am waiting there for you. I am only hidden by the priest, but I myself act in your soul. Here the misery of the soul meets the God of mercy. Tell souls that from this fount of mercy souls draw graces solely with the vessel of trust. If their trust is great, there is no limit to My generosity. The torrents of grace inundate humble souls. The proud remain always in poverty and misery, because My grace turns away from them to humble souls.”
remember, the only way to say a ‘bad confession’ is if you intentionally withhold your sins, with knowledge that you are doing this. Otherwise, - when you come out of the confessional your soul is completely clean, as if you were just baptized
if you think you’re doing everything right, you probably are. Trust God.