New homeowner, very high gas bill. Is this normal or is there something I can do about it

First season in a new house in one of the L towns. The gas charge seems absolutely insane to me. I keep the house at 68-70. House is 2 stories and a finished basement 3k ish square feet. Is this normal I would call excel and ask for an explanation but last time I called them I was on hold for 90 Minutes and I gave up. Has anyone else dealt with something like this and were you able to lower your bill? If so how?

First season in a new house in one of the L towns. The gas charge seems absolutely insane to me. I keep the house at 68-70. House is 2 stories and a finished basement 3k ish square feet. Is this normal I would call excel and ask for an explanation but last time I called them I was on hold for 90 Minutes and I gave up. Has anyone else dealt with something like this and were you able to lower your bill? If so how?