Knowing your break-even revenue is step one. Planning when you will reach it — month by month — is what keeps a business afloat.
Write down your fixed costs, your realistic (not hopeful) monthly sales, your realised price after discounts and delays, and the cash you have. The gap between today and break-even is your runway problem. Solve it on paper before it solves you.
I go deeper into this in Don't Let Your New Business Drown.