Mother in law moves in!

I appreciate my mother in law but far away from me. My husband has just taken her in because she can’t keep a job or get her life together. I understand she needs help but my life now has to change because this grown ass woman can’t clean up her own mess of a life. I can’t stand this. I already want to move out with my baby. My husband can stay with his mom. I understand maybe I’m being inconsiderate I simply cannot stand this situation. Has this ever happened to you? If so how have you coped? Any advice helps!