Crazy mother

So last summer my mom was living with family and wasn't happy. Hubby and I were just about to move so she said she would help with bills and kids if we would let her stay with us.. She would also stay to herself and let us live like a family that lived on our own. So for the first few weeks it was nice I was pregnant very close to due. Come time to have the baby she was supposed to stay hone with the 4 children while I went to have baby. I was in and out of the hospital labor was there but baby wasn't ready. So finally had to be taken by amed to have her because I was to close to having her and hospital was 45 mins away both were.. That's when it happened she started taking control she jumped in amed so hubby loaded his and followed behind had his dad meet for the kids. Got home it didn't get better.. She bitches at the kids bitches about everything they do all the time she's up on her computer all damn night and sleeps all day. She did just start working but until they get her more patience she's only on weekends so really don't work. She's helped to pay stuff to begin with but stopped she promised to give 150-200 a month as like rent and she hasn't yet. Everything she has paid she racks on as we owe her it back. Cable and internet were to be her bills because we didn't have or care to have it we have out phones for that and she refuses to pay them.. She's acting like the parent of MY children and she's NEVER wrong in EX: this past weekend she worked and we left fishing one day all day and the other went to yard sales all day from the time we got up till right before she got home.. So this am she tried telling me my kids were in her room and ate her snack cookies when she worked. I know for a fact they werent because like I said we were Not home her door was shut and let's be honest little ones would drop or make a mess of them. She argues with me till I give up because even when I know she's wrong she's still some how in some way right. Again even when I have proof she's wrong. I cook dinner every night and she has to have it brought up to her room by me or one the kids she's to lazy to come down she don't help buy the food or even help load the dish washer after dinner... I'm loosing my mind. Hubby and I agree she has to go and plan to make her but I see her putting up a fight. I don't know I can't rant anywhere else because it will be seen and some days I could just cry.. She just now at 2pm got out of bed and the first thing she said is the kids have the house a mess. She don't clean it I do she has no damn say ya know ugh I'm done now lol