Madden Confession

I still  consider myself a Catholic (see previous blogs regarding confession), but I no longer believe that I am a "sinner."  I am a person who makes mistakes.  If we didn't try new things and sometimes fail, how would we create and discover?  That's why I don't like to make promises based on the expectations of others.  It infringes on my ability to be me. I will make a promise only if I know that I can keep it. Read "The Four Agreements.)  So, what is the difference between a sin and a mistake?