Undone by God's presence: Not one is righteous

I love the description of God's presence as disturbing - of Isaiah (chapter 6) being "undone" by God's presence as he realizes he is so imperfect and lost. Many people have a hard time realizing this. They think God is all about their revelation of love and refuse to see the truth because they're too busy justifying themselves as self-righteous beings.

As a former porn addict still dealing with obesity and food addiction issues, I come to this realization - that I am undone by God, but that Christ saves me - over and over again. It took me so long to get there, too. I can't tell you how many times I woke up in the middle of the night thinking my parents would be raptured and I'd be left behind because I was stuck in my sin. All that time, I was saved. I had accepted Christ in simplicity and was still growing in a process of sanctification. No one is perfect, not even after saving grace, but Christ washes away our sins.

Still, I tremble at the thought of judgment day. I know what I have done, and I know a whole lot more sin will be revealed to me one day. I am undone.

How should the reality that you are a sinner affect the way you live life?