Depression and irritation. Help!

I'm married for 5 years and have kid of 11month old.e and my husband staying in bangalore while my mother in law stays in native. My in law treats me in such a way that I don't have my own personality at all and must follow each and every word of her without second thought. If she comes to our place or we go to native, she just wants to rule over me. If I oppose which I don't like or if I put my opinion front she reacts too much and creates seen and quarrels. And my husband always will be on her side and never support me. Sometimes he even get angry on me of this and always tells me to be quite. Whenever I talk back to her she leaves our home and goes to native. she tells to my husband that I'm so rude that's why she's leaving. This makes our relation worse and cold war will be started. this makes me depressed and crying all night. and now I am feeling irritated by small things and get angry soon. I feel irritated if she is with me even, because of all this.I'm totally confused.help