The process of sanctification begins when you say yes to Christ. You won't be rid of the sinful nature, which includes selfness, until you receive that immortal and glorified body. Our salvation is not based on our being rid of the sinful nature by the time we die, but by faith in Christ. As I said, we are being transformed into his image as we go from faith to faith, but we will never obtain that in this life, with this nature. And if you think you stand, what does the word say: "Pride comes before a fall." Our faith should be on His righteousness, not ours, which are as unclean rags.