Its a hard shift to come back to after 6 work free days!
Man up dude
My normal work pattern is 28 days of 12 hour shifts (on an oil rig with no bevvy or decent food or decent telly) followed by 28 days at home and then back for another 28x12 hour shifts. You mortals have no idea how difficult it is to motivate yourself for 28x12 hour shifts after 4 weeks at home drinking beer and single malt