Running a business is very hard and nothing stays the same.
You have to continually plan and be ready for change; the market could change, the economy could change, employees could leave, you try a marketing or sales effort and it fails. Never get complacent and think things won’t change. But change is a good thing, it means you’re growing, opening up new opportunities.
With change, you’ll be met with new problems.
You and your management team should be ready with processes for situations that could happen and you can find the hole in the process where problems need to be fixed. Make sure you have an emergency fund in preparation for potentially bad days but, more importantly, prepared for the amazing opportunities that will come too.