I believe you're partly right. How we keep His commandments are part of our sanctification process. But it hasn't anything to do with our salvation except give testimony to it. Nor can we look at others-only ourselves- as everyone is walking a different walk.
As far as feeding his sheep, I think most of the fruit we bear for God we know nothing about while those things we think are so important are rubbish to God.
Mat 25:37 Then the righteous will answer him, saying, 'Lord, when did we see you hungry and feed you, or thirsty and give you drink?
God only wants us to be faithful to Him. He will bear the fruit.
Being faithful is obeying his commandments.