Simple budget for a tight month - what worked for you?

My income is now a fraction of what it was as a social media manager and I am trying to cover the essentials. I worked as a social media manager before this. The rent is fixed and the car payment is high. Any apps or methods?

Keep everything in writing and save the confirmation numbers. It made the follow-up calls so much easier.

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