I am 30yr old. my mil wants everything in her control, we live together. my husband is a mamas boy?

he is the only son and my father in law is no more. we have been married for 6 yr. every household work is hers, every decision is hers. now i have a child she wants to take the child from me , always try to show she is a good mother, is over enthusiastic as if seen child for first time. i understand that she needs our care and i do want to take care but she is always dominating , always suggesting one thing or the other, keeps constant vigil on each and every task of mine, and almost gives a running commentary on my actions. i m an introvert type of person does not interfere in others work and expect the same. her actions drive me insane. she ll do her own wishes and then for the same wishes she ll try to dramatise how she has devoted her life to us, how she work so hard for us to live(though we have not told her to do, and when ever i want to do she does not allow me to do) . then are her innumerable illnesses that come at the time when she thinks we both are happy together, when she wants attention. they are used for emotional blackmail. i dont know how to live in this home. i love my husband, he loves me too but in between get inflienced by her mother. they want to remote control me and do what they want . i feel helpless. now i have a child .she keeps saying that its her child, she is a good mother. she wants i to give the child to her. there is constant tug to keep the child to herself. she is passively aggressive histronic personality . i cant stand her but even then we have to stay together. she is over dramatic and loud, i m just the opposite. what shud i do ? how to live under such circumstances in that house? how to keep my child not getting bad influence from her? our married life getting badly affected by this tension.