I had someone recently come to me over this same issue & i helped them tackle this problem ,There are alot of reasons that can make on annoyed or irritated in the day to day activities of a business .
There are issues of competences and the need to recruit the right management, the financial management, keeping up with the regulations & compliance, overwhelming data and the list goes on , but these are normal challenges in a business .
A few tips that can help you with this is to make a plan, be it a financial plan , listening to the pros people that have been there before they can guide you and so many more other solutions.
You can give me call for any follow up questions or more queries.