MorahRach: I sympathize with your situation and i hope you find a solution soon!
As a mother of a few young children, i wish i could stay home! But on the other hand, i cant afford to stay home and for my sanity, i think its really good for me to get out, have a schedule, and some time for myself. Paying a babysitter (plus tuition for the children in school) is alot of money but there is no choice there. I need to pay my bills, i need to survive and i cant do that without a 2 income household. My in laws cannot help and my parents try to help every now and then.
One thing i did notice is that when there comes a time that we dont know where the money will come from, Hashem sends us the money in the form of a bonus or a gift from grandparents. My family is not wealthy but they do try to help me and my siblings.
I know that you said you arent getting anything from your in laws who are clearly in a position to help you, and i was not trying to rub it in. My point is that you will see, you do your part and Hashem will help! I work every day and found a part time job that is flexible that i can work from home for a couple of hours a week. My husband too works in addition to his learning. There is no more time that i can give to making a parnassah as i want to spend time with my children too. I know i am doing my part and i know Hashem will help me when i need it!
Keep your chin up and know that although your in laws can but dont care to help, your Father knows and will be there for you!!