Well I hope that you do not die in mortal sin.
While you may believe this, it does not follow the teachings of Jesus.
I have been cleansed of ALL my sin by Christ.
My salvation is not an on again, off again, situation depending on whether I sin or not.
The problem Catholics appear to have is to not understand the depths of sin and how it taints EVERYTHING we do.
They have their laundry list and check of whether they didn’t do the don’t’s and think that if they have those covered, they’re good.
The problem is ONE sin is enough to send someone to hell for eternity and even if you lived a perfect life other than just that one sin, you’d still go to hell.
God’s standard is ABSOLUTE perfect. Perfect as HE IS PERFECT.
That included heart issues as that is where sin is born.
That’s why forgiveness and the new birth is essential.
When a person is born again, they are a new creature in Christ. They are given a new sinless nature that no wages war with the old sinful nature.
When the body finally dies, the last remnants of that sinful nature is gone and all that’s left is the new creature, perfect in Christ nature, and that is already seated in the heavenly places with Christ Jesus. (Ephesians 1-2)
Those who rail against the new birth as those who have never experienced it and don’t understand it.
It does indeed follow the teachings of Jesus Christ and it is the teachings of your Bible also, but not of your Catechism. You make the choice in which you believe.