The fact that we fail every day, (which we do), does not allow us to ignore 2 Timothy 2:19, Ephesians 4:22-24, Colossians 3:5-14.
We are to obey those passages to the glory of God.
...and just because sanctification is a gradual process, doesn’t mean we throw in the towel. We strive, fail, get up and strive again, and in the process, we GROW
A baby will fall many times before it learns to walk.