My sister works in IT in a small business and she hates it. 50 -60 hours a week with no overtime, no pay increases for years because the company can't afford it, promised training never delivered and the usual problems with user demands are just a few of her issues with the company. Unfortunately, a hugh mortgage and a single income keep her there because she has no other skills to change fields and what's the point in going into the same situation elsewhere.

Obviously, your situation is different but just because it is a small business doesn't mean it is going to be easier.