"Success, like beauty is in the eye of the beholder".
YOU define what success means for yourself not what the neighbors or the business down the street says it is. Its easy to get caught up in thinking that "her" business is successful and "mine" isnt as much. Perceptions are misleading, dont compare what you are doing to what anyone else appears to be doing. What matters is if you are happy and your business model works for you. If so , then you are on the right path!