I disagree with you on both these points. I would refer you to the book of Job for the first one.
Godly people who are righteous and walk upright can still be afflicted by hardship, pain, and agony. That's what Job went through. Yet his friends wrongly accused him of sinning.
The point is, our behavior could be stellar, and yet, we can go through a period of suffering. And God is the only one who knows why.
To your second point, I would love to stop sinning altogether. I hate my sin; it makes me sick to my stomach.
However, on my own, it isn't going to happen. And the more I try, the more I sin. So, I chose to follow a Savior who washes me every day when I wake up and just before I go to bed. So, I'm constantly being cleansed.
You may not need that, but I do since my thoughts alone are vile and putrid, and my flesh is in constant conflict. On my own, I am rotten to the core.
So, I told the Father when I was 12 that I needed a Savior, and I've needed Him ever since. As much as I would love to be perfect, I just can't get to Heaven on my own.