stand on one’s feet—remain standing:
- He stood on his feet, twelve to sixteen hours per day, in front of a hot oven that never stopped circulating thousands of loaves of baking bread.
stand on one’s own feet—(also: stand on one’s own two feet) be independent; rely on one’s own resources:
- I won’t lend you any money, it’s time you stood on your own feet and earned your own living.