stand on one's own two feet

/S T AE1 N D AA0 N W AH0 N EH0 S OW0 N T UW0 F IY0 T/
verb
  1. 1

    To be independent; to survive without any help.

Source: https://en.wiktionary.org/wiki/stand%20on%20one's%20own%20two%20feet