It is difficult to give an answer to your question directly. i am assuming that you are talking about some aspect of the restaurant business. As a person who markets food to restaurants, pizzerias, and food service, I have seen many places shut their doors over the years. More so in the last year. I have also seen restaurants that have taken off and are doing very well. I am sure you know to do your research before opening up your doors. The first thing is Location. Location. Location. Next is your product good and is it in demand. What about your competition? What is the average price or going rate for a meal / pizza? What choices do customers have with in a few miles of your business. What are your advertising costs going to be for start up, do you have some money to work with. Has a similar business been there and failed already? ETC...
Having marketed many restaurants over the years, i am at the point in my life that I choose NOT to live at a business. I like being home with my family more and i have learn to take vacations and enjoy them. I also make time for my personal health. I see many people everyday that practically live at their restaurants. They are there on weekends, when you and i have it off. Name any Holiday and they are there too. They open up and they close the place, and often times do not get a vacation, etc... Forget all the previous questions in the above paragraph. First ask if this is what you want to do with your time at this point in your life? Are you going to have enough to retire on if the place goes out of business or did you risk it all on this project? If you do not, forget retirement. You will be working.
And i have not even began to discuss hiring quality employees, wages, insurance, and the big one, THEFT. As one restaurant owner put it, "It is is not a matter of whether your employees will steal from you or not, they will, it is a matter of how much and how often".
If I have rained on your parade, please accept my apologies. i just hate seeing people invest all they have without doing all the research first. I really do wish you the very very best in what ever you decided. Just take your time and research it very well. Ask yourself the serious questions. Once you open your doors, your are committed at that point. Especially if you signed a three or five years property lease and have invested your own money in equipment.