Undefined history of what i am

What i am is what i am now and can never be replaced or even affected by for my filthy sin in the past. Sometimes we might get it wrong eventhough we're sayin' that "yes i do understand" but actually you're not. What i'm tryin' to bring out here is whenever or no matter how badass you are, you're still a human and we know that God never sick on giving us chances by lookin' forward for an improvement in our life. It is we,human who decide whatever we wanna do because our action in future overcome the past's. Never looked down when you feel slighted in nowadays human race because they don't really know who are you and what are you really in to. Define sin for me. Yes,we all know even "Mr.Oxford" could tell us that sin is an action that most filthy among human kind, unrespectful,awful, and even disgraceful. The real meaning of sin is the one "what" came through our head while doing something that we sure we're right but instead. I more likely to define sin as "an everlasting learning process".