According to Govt. statistics 75% of all new businesses fail in the first 12 months, and of the ones left 75% of them fail within the next 5 years.
So if you are still in business after 5 years then you are a success.
I read a while ago that a good definition of success, was, "the ability to bear pain", in other words you keep going despite the problems that come....
colds, flu, long periods of rain, car or van breakdown, employee problems.
So keep going, no matter what, and you are a success !