One of the many reasons it’s tough to own a business is because it’s entirely your accountability.
Even (and especially) if you have a team, the burden to keep that business functional and profitable all comes down to you. And even if you do everything “right,” in theory, if you don’t get the results you need to keep operating, you’re done.
You can’t keep your business open by paying your costs with “Well, I did the best I could do.”
Having said that, doing your best is all you CAN do. But what happens when that isn’t enough?