Simple budget for a tight month after 18 years as an office manager

My income is now a fraction of what it was as an office manager and I am trying to cover the essentials. It has been weighing on me all week. The rent is fixed and the car payment is high. What helped you?

Sell things you do not use. I made about $1100 from a weekend of listing.

Check for energy assistance programmes. I got a credit that covered two bills.