I hear you OP. I too have lived with my ILs and while they are wonderful people, FIL still drove me up the wall. We had just moved from another state and I found out I was pregnant a week after we moved in. That just added a whole extra element of stress. I was depressed, felt isolated, had no friends or family near by (except ILs), hated my husband for making me leave my home and a house that we still owned and could have stayed in. I too felt like a live in cook/house keeper, and I never felt like I could say anything because we were living in THEIR house. But, all that said, I would live with my ILs before my own parents so I guess it could have been worse
We are finally, FINALLY moving out!! Hopefully you will be able to move out soon too.
For the PPs who are being rude, you have no idea what it's like unless you've lived it so STFU.