Enbridge Bill.

First time living in a condo. First time paying utilities. All this while been in an apartment where heat was free. The Enbridge bill hurts badly. I am afraid as going forward it’s going to be peak winters. Any tips in this regard, please.. How to keep the gas bill low or how do you all maintain the warmth inside the home..? Or how effectively to use the heat..? Desperately looking for some pointers.