fight your own battles

fight (one's) own battles

To try to overcome challenges without help from anyone else. Mom, he's not a baby anymore—let him fight his own battles.
See also: battle, fight, own

fight your ˈown battles

be able to win an argument or get what you want without anyone’s help: I wouldn’t get involved — he’s old enough to fight his own battles.
See also: battle, fight, own
References in classic literature ?
Perhaps you think I am come on purpose to quarrel with you, knowing Weston to be out, and that you must still fight your own battle.
I was told: ``You are old enough to fight your own battles.