Budgeting tips when income drops after 3 years as an accounts payable clerk

I am $100 short each month and trying to find it. I worked as an accounts payable clerk before this. The rent is fixed and the car payment is high. Any apps or methods?

Sell things you do not use. I made about $100 from a weekend of listing.

I called each lender and asked for a hardship plan. Two agreed to lower payments for a few months.