Wiktionary
steady the ship
vb. (context idiomatic English) To bring under control
Usage examples of "steady the ship".
I gasped, reaching for the tiller and just managing to grab it this time to steady the ship.
He saw him try to steady the ship so as to head for the narrow entrance, notorious among seamen for its difficulty.
There was just a faint chance that the tightly drawn net itself helped to steady the ship in the pit, now that the digging was in progress, and to release the main ropes could rock it off centre.
He was impressed at how solid and steady the ship seemed, despite the apparent turbulence outside her.