Simple budget for a tight month, bank teller here

My income is now a fraction of what it was as a bank teller and I am trying to cover the essentials. There are 9 people counting on me, so I am trying to be careful. The rent is fixed and the car payment is high. Any apps or methods?

Thanks for writing this out. I went through something close to it last year, and it settled down once I kept a simple log of every call and form.