You should get a timer on your water heater. Have it turn on 1/2 hour before you need hot water. Put a water heater blanket on it. I use a regular sheet on my heater and added a few towels to retain the heat. This could cause a fire if you don’t cover it right so be careful or buy the real thing. I live in an apartment so I started turning off the circuit breaker. I wouldn’t recommend that if you own the home as you will have to replace the circuit box sooner because you switch it on and off. I only turn it on a few hours a day. I saved money on my electric bill this summer and hope to do the same this winter.