What is the best thing to do now?
The best thing to do now is to hold that ETH stash of yours unless you see the price of it still being profitable for you. As for your mining equipment, put it into better use by mining other profitable coins that can be mined now. Since you are a miner, you should know what coins are profitable to mine now. If you can't find one, only by then you will turn off your equipment to save money from electricity.