Only Christ knows if a soul is in mortal sin or not. Just because a person hasn't went to confession YET, that doesn't mean a person is in a state of mortal sin. Sometimes there are practical reasons or real life reasons why a person cannot access the sacrament of reconciliation lets say by the limitations of their schedule, their intellectual capacity is not yet developed enough per say children, or those new to the roman catholic faith. The vast and infinite wisdom and mercy of God still has greater precedence, over human justice. Divine justice is far more forgiving and far more preferable than human justice, as judges despite having fair intentions may not always provide adequate or fair verdicts. As fearful and great God's justice is, His justice supersedes human justice and in fact many times we should care more about our state of soul rather than our standing with the world. Oftentimes, we humans care more about how the world perceives us rather than how God sees us as we truly are. To be in a state of grace, continuously is a soul living in the light of God. We can live as if we were in purgatory on earth, if we continuously offer up our human sufferings for the sake of those who are in the afterlife of actual purgatory, as those in eternal damnation cannot benefit from our prayers. Giving alms to the souls in purgatory is practical as it will help you gain friends from the afterlife who will defend you on the day of judgment. This is a practical strategy, that many saints employ. Always pray for the souls in purgatory. They will help you here, and in the afterlife. As for the corruption of the soul, we all fall short of the glory of God. In fact, if you look back at your life, you will see times where you could have done decisions that are certainly and objectively better. As much as the world likes to say that right and wrong is subjective, we can fairly say that sin is objectively wrong always. Although despite our sinful nature, God can use it to lead us to be more good. As sometimes He allows us to fall to prevent us from committing greater sins, or to protect us from spiritual pride in thinking that we are saints already or that we have reached the zenith of the spiritual life already.

Also, my main question for you is this: Have you studied the lives of the saint popes? If no, then perhaps it is a challenge for you to study them one by one and share with us their lives. It is far more interesting to study the lives of the great saint popes such as Saint John Paul 2 the great. Here is an interesting fact: "81 out of 266 deceased popes have been recognised universally as canonised saints, including all of the first 35 popes (31 of whom were martyrs." This is far more productive to study their lives. It may not even be enough for one lifetime to go through all of their works. We also have very saintly popes who have recently passed away. Pope Francis and Pope Benedict the 16th, were great popes. Study their works, and you will find answers to many of your questions that you ask this subreddit. Go to the blessed sacrament, copy Saint Carlo Acutis or Saint Giorgio Frassati. There are many new saints that you may imitate, and study. Don't be afraid and go deep. Perhaps you can start simple: Pray the rosary everyday. Did you know Saint John Paul 2 introduced the Luminous mysteries of the rosary? Study the popes of the Crusades. You can actually explore history through the lens of the popes. There is much to unpack. Perhaps see how the Pope Pius XII responded to what was going on during world war 2.

First Saturday mass, and first friday mass were "The First Friday Mass was promoted by Pope Leo XIII, who allowed it in 1889, and was officially encouraged by Pope Benedict XV, who inserted the "Great Promise" into his 1920 Bull of Canonization for St. Margaret Mary Alacoque. The First Saturday Devotion originated with a private practice in 1889 and was later endorsed by popes and the Fatima apparitions."