Simple budget for a tight month (Buffalo)

I am $850 short each month and trying to find it. There are 7 people counting on me, so I am trying to be careful. I listed needs and wants and cut a few subscriptions. Any apps or methods?

Keep everything in writing and save the confirmation numbers. It saved me later.

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