Should I quit or slow down on exercise?

Normally, I workout 5 days a week doing kickboxing and aerobics cles, as well as a stationary bike, elliptical, and strength training. I just got a new job that is VERY physically demanding (standing 8 hours, constantly walking around, heavy kitchen work, squatting). Basically, there's no resting. I came home exhausted! Should I quit exercising, or should I exercise less?