Converting to Catholic faith. Have been keeping a notepad of all my sins that I could remember. Probably will be received into church on Easter Vigil 2015. Notepad is I think huge with most of my sins throughout my life. I understand that for a confession to be valid the repentant must tell all mortal sins and not hide anything. If any other mortal sins are remembered after, they do not invalidate the last confession but should be confessed next time.
I am a forgetful person. Now my question revolves around forgetting mortal sin. On several occasions, I have refrained from writing down mortal sins thinking “I’m going to forget the mortal sin if I don’t write it down, so if I do, then me not confessing it at confession does not invalidate my confession because I only confessed everything that I do remember during the confession, since I forget the mortal sin by not writing it down. So, I’m not going to write down this mortal sin since I will then forget the sin I committed because I’m lazy to write down all my mortal sins.”
On several occasions I have been guilty of this thinking. Should this be something I should confess as a sin in a confessional, of premeditated abuse of the confession? Does this in any way actually invalidate a confession because even though I was fully open in confession, the fact is that I knew there was going to be a mortal sin I will forget before I actually forget before the confession.? Sorry if this is complicated, but hopefully you get what I mean?