Did this last year when work dried up. Built a spreadsheet with three columns - fixed costs, variable costs I control, and personal bare minimums.
The personal stuff was a reality check. Thought I could live super cheap until I tracked actual grocery costs and emergency repairs.
Big tip - calculate both 30 and 90 day numbers. You might survive one lean month, but you still need next month’s rent and quarterly bills.
Don’t trust your gut on spending either. I pulled bank statements and couldn’t believe how much random crap added up, even when I thought I was being careful.
Been doing this every year for a decade. Start with what actually hits your bank account each month, not what you think you spend.
I pull up three months of statements and highlight everything that would shut down if I don’t pay it. Rent, utilities, insurance, minimum loan payments. Then I add 20% because something always breaks.
This video breaks down the whole process step by step if you want to see it done properly.
Once you have that number, you know exactly what jobs to walk away from. Makes pricing way easier when you know your real floor.