Strong heart and mind is it there still?

Well I thought I always a strong soul. At this time in my life I have tried to keep strong but I am not sure If I can anymore?! I have been living with my in laws.  Well that's were it begins, we did move in to help our money thing. Also to help them with my father in law with his heath.  They don't let my husband or I do the raising the kids the way we have choosen to raise them to them it is wrong. My father in law is always yelling at them  but the kids scream because they are fighting over a toy. He says "Shut the Hell up"  The bedroom the kids have is upstairs and the one we got (if you want to call it a bedroom) is downstairs.  The kids hate it up there. If they need mommy or daddy Grandpa yells get your ass back to bed.  So we thought we could fix that by letting kids sleep downstairs.  That's when things got more crazy.  We sat everyone down to talk  OH that didn't go well at all!  my father in law got mad and the rest of the week was bad. 
I take the kids downstairs and that makes him mad. but if we are upstairs hes mad.  I have been in pray a lot it help but doesn't stop the hurt. This hurt my husband he has tried to talk to him but then he get yelled at by his dad.

So I trying to handle this but I don't know how?  HOW, HOW, HOW?????!!!!!