trim (one's) sails
1. To adapt oneself to new or altered circumstances. Following the attack, many politicians trimmed their sails and adopted a more aggressive stance on military action.
2. To spend less money; to decrease one's expenses. Our rent is much higher, so we've had to trim our sails a bit, but we love living in this area.
trim your sails
make changes to suit your new circumstances. Literally, trim a sail means ‘adjust the sail of a boat to take advantage of the wind’.
ˌtrim your ˈsails
1 arrange the sails of a boat to suit the wind so that the boat moves faster
2 reduce your costs: Increasingly, businesses are having to trim their sails in order to survive.