i've shut down my complete mining operations, power is too expensive in my country. Overclock or not doesn't make a difference, im paying more to my power company then my coins bring up...
Have you tried to change mined coins? Perhaps you are betting on the wrong horse...
I think you can even automate the coin choice with some script in order to change it properly.
EDIT: I found this. It may help you.
https://www.smartmine.org/