International Money Pile in Cash and Coins

What am I worried about? The same answer all the time - MONEY!
I am a single mom, just making ends meet. Even though I was an executive prior to having kids, I stayed home after they were born so they wouldn't have to go into day care and be raised by someone else. After three years of being a stay-at-home mom, I needed an income, so I started my own child care.
After my divorce three years ago, I feel the tremendous pressure to provide for them financially. Being self-employed, means your pay fluctuates. I constantly worry about not earning enough.