My sister in law treats me very very bad and like a servant.. please help me :(( v sad & depressed?

I got married 1 month back. My husband and my inlaws were really nice before marrige but now things are different. My mother in law and father in law are good but my sister in law troubles me a lot. she interferes in almost everything of my life. my mother in law doesnt say me anything but sister in law is after ny life. I got her a new bag from my honeymoon and she made a v bad face and said the bag is not great and that she liked my bag more. she is 10 years elder to me and i gave my bag, i said u keep this bag if u like so much and she literally took it. i take care of her kid more then her and she treats me so bad. her husband is almost 15 days in US in a month and she doesnt stay with her inlaws bacause she keeps on fighting over there. she stay in my house for more then 15-20 days every month. Today she selected piks for nmy wedding album ( its my album right) and she did the selection, I wanted some piks of mine but she dint let me put in my album :( my parents piks also ( can u imagine). I told this to my husband but he always says what can he do.. yeaterday i wanted to see a movie and asked my husband to take me out , he said as sister is here we should ask her also. i felt bad as i am newly wedded girl and i need nmy privacy coz already we are staying in a joint family but he still askd her and she dint refuse and came along with us. she is v v interfering. Today i dint said anything to her and she lied to my mother in law that i was arguing with her. :(( please help me.. what should i do? my husband is family pet and he will do nothing. I cant take divorse. Please suggest me friends. :(( i need peace