(figuratively) to be able to size things up immediately, to be able to measure distances to the naked eye, to be able to judge size by sight, to have an accurate eye, to have a good eye for proportions

(informal, figuratively) to put the pedal to the metal, to floor it

(figuratively) to have the devil in one, to be a real handful, to be very energetic, to be restless, to be running around frantically

(figuratively) on the razor's edge, on a knife edge

in the heat of the moment

A village in Quebec, Canada; Former name of Deux-Montagnes. (a town neighbouring the town Saint-Eustache and the lake Lake of Two Mountains)

(figuratively) to back the wrong horse

(informal, figuratively) to be riding for a fall, to be heading for disaster

on a war footing / in fighting trim

(informal) practice makes perfect, you'll get better, you learn from your mistakes