S.M.
A.,
I feel your financal pain, I really think everyone is being hit hard with the raising cost of living. I am a mother of 2 little girls recently seperated so I do know what it is like to struggle. I have a few ideas for you that may help. First off who will be watching your son? That costs money as well if you dont have a friend or family member to help out. Also I dont know your back round much but have you ever thought of doing childcare from your home? I did it for 5 years and made a really good income ( makes me wonder why I ever stopped I make less now) But all that depends on you and wether or not you can cope with caring for children that are not yours for extended periods of time.
What I am personally doing now is agency work, I am a CNA ( it only takes 4-6 weeks of classes) I pick my days, how many hours I want to work ( or need to) I make a decent wage.
I wish you the best of luck in whatever you may find, Oh and please dont fall for that stay at home work you hear about, I looked into many many many of them and they are all a load of horse dung.