First of all, Yes 150/wk for babysitting is very reasonable, though it is against the law for the baby sitter not to claim the money on her tax return. There is a very high likelyhood with the amount of money she is earning she will be able to write most of it off, and may even help her on her own tax return with earned income. You personally filing your taxes are entitled to approximately a 27% tax break on the money you paid for child care expenses. Which would come after your tax, so for example, the maximum is $3000 per child, so you would claim $6000, that would give you $1620 off of your taxes and then you would be able to claim a child tax credit for each child to the point of wiping out any tax, the balance then would be put into an additional child tax credit for which is refundable.
Also I am sure the reason you do not qualify for assistance is because of your living situation, any government agency is going to take not only your income into account, but also your boyfriends, which enevitably will hurt you in the long run. I completely understand your sentiment, as we have always just missed getting assistance by only a few dollars, and have other family members whom make just a little less, but end up with huge tax breaks, and loads of government freebies, and when you add that into the equation, the few extra dollars a week we make, actually ends up hurting us by thousands every year. In our city they have some preschools at local churches which will work with you on the money, and are usually much more reasonable. Also I understand that Head Start takes several over income students every year, so you may want to apply anyway. I wish you tons of luck!!!!!!!!