Help My electric bill is $590??

First time owning a home, a month after a move in we get our first electric bill-$590! It’s a 1800 sq ft house, only 2 people living here. We keep the heat at 60-65 during the winter, and I checked- it’s not constantly running. According to the people we bought it from, the HVAC system is only 2 years old. We are averaging 136 kWh of energy a day on our meter (I think normal is 20-40?)

We called the electric company and they said this energy usage appears typical for the house, and that the previous owners paid this much in the summers/winters. We asked for an energy audit and they declined, said “it’s probably the HVAC”

Any suggestions on next steps? We most certainly did not budget for paying nearly $600 for electric a month 😭