Budgeting tips when income drops - what worked for you?

I am $150 short each month and trying to find it. It has been weighing on me all week. I am nervous about falling behind. Any apps or methods?

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

A paper list of bills by due date helped me more than an app. I could see the month at a glance.