We all make mistakes. That's what Confession is for.
But here is an important lesson to take with you into the rest of your life:
God always forgives (if you repent)
Man sometimes forgives
Nature never forgives.
This has many important consequences. For starters, going the Protestant route of confessing your sins publicly, at seminars, on Youtube, etc. makes people hold your sin against you, and as it were defend your sin. Scripture SPECIFICALLY speaks about this; you can look it up on the best online Bible there is: drbo.org
Another example, when a woman has an abortion. God will forgive her IF she repents sincerely and confesses her sin. Some men will forgive her, others will not. But Nature is RUTHLESS. She will have long-term damage: emotional, psychological, spiritual, and might have PTSD and nightmares for years. Nature is a cold, harsh mistress. When a woman goes against her nature in such a fundamental way, there are GOING to be consequences, even in this life. Nature is so cold, it will take the life of the last child of a widow, without missing a beat. Nature, being impersonal, follows its millions of processes and laws without a conscience or feeling. When poison is injected into someone's veins, it doesn't matter who that person is. The heart is going to stop beating, and Nature doesn't shed the first tear.
You can probably come up with hundreds of other examples. But all I can say is: that triple quote is absolutely true.
And yes, when it comes to salvation, etc. you have to reverence and respect the mystery of it all -- it's God's realm, not ours. Pray for these poor lost souls, but of course don't get mixed up with them. Scripture also talks about the horrible effects of keeping bad company. So many wise sayings in the Sapiential or "Wisdom" books. Proverbs, Ecclesiastes, Ecclesiasticus, etc. And if God said it, you can take it to the bank. 100% Gospel truth, literally!