If you remember your education about the Sacrament of Reconciliation you will remember that there are conditions to forgiveness. You are supposed to do you penance, make an effort not to sin again and probably some more that I forgot. So, if you didn’t do what you are required to do would your sin be forgiven?
If you study Scripture you can come to several conclusions about forgiveness and sin. They range from everybody is forgiven to almost no-one is forgiven, depending on what part of the Bible you choose to read and how you choose to interpret what you read.
But, I have never come across anything where the nature, or severity of the sin made any difference. Everything I have learned seems to make all sins equal, at least when it comes to going to heaven or hell. Now keep in mind that I am talking about grave sins. Which can be just about anything.
If you study the way that the Sacrament of Reconciliation came to be you will find out that, as everything, the practice of it has evolved over time. But, throughout history, the message has been consistent, God doesn’t want you to go to hell. You should be assured that God has worked very hard to save your soul, not condemn it.
There are people that see 4 mortal sins under every rock and they live in a gravel pit. History has always had such troubled people. Martin Luther was such a man. It is not easy to live in a state of mortal sin. It requires that you sever your relationship with God. Personally, I don’t think God, or the Church wants us to exist so we can become mortal sin counters. You know, how many mortal sins did I commit today and which one was the most fun? Or, what mortal sin do I commit tomorrow so I can get all that wonderful grace by going to confession?
Jesus, in The Lord’s Prayer, asks God to “forgive us our sins”. If God forgave us our sins when Jesus died on the Cross, why would He say that?
