I realize that I am far from being perfect. There are many (involuntary) things about myself I don't like (this is not saying that I don't like myself whom God loves). So I want to change myself to become more pleasing to both myself and God. This desire to change is essential for spiritual growth. And transform us God certainly can. The fundamental change to become absolutely perfect I believe will happen only after we get to heaven. While on earth, we can let the Lord perfect us as much as possible. All changes begin with a desire!