There are plenty things you need to do to ensure success.
Run a frugal operation, bring in partners you can trust, avoid hiring the wrong staff, take calculated risks, etc etc.
But these can distract you from the most important part of business:
Selling.
Bringing home the bacon.
Putting cash in the bank.
You can’t save your way to being rich.
You can only sell your way to being rich. If its your company, you’re the chief salesman.
To paraphrase Morgan Freeman in Shawshank Redemption:
“Get busy selling, or get busy dying.”