I get angry of my mother in law, what should I do?

My mother in law is 65 year old woman, always sick and nagging...DRAMA queen, she uses her weakness and life suffering stories as weapons to say and do whatever she likes because she's poor and old...My husband pays her rent + gives her money and I DON"T CARE about that as long as she's away, but that seems not enough, she doesn't like to see me happy, hair done, wearing new cloths or going out or going to my mom's house, she dosen't like my husband to pamper me and spend money on me, she always reminds about a gift she makes to humiliate me, she even called on honeymoon at 6 am in the morning at my wedding she cried all the time, when my baby was born instead of good wishes she said to my baby, " You came to this terrible world full of worries and sadness you will wish to go back to you mom's womb"!! and later she bought gift and came to make it up to me.,..Whatever I say it's wrong. whatever I talk she talks the reverse...She stares at me when I wear something nice, when I was in the hospital after giving birth she started to say stupid things like don't hold your baby! she will get used to holding (imagine after 9 months of waiting I had to hold my child) she kept arguing with me in my weak moments and pains that I should keep my baby crying at night and not hold her to train her to self soothing. She even ashamed me infront of my guests many times, she said that my baby hair will fall eye color will change when she was just born, and none of that happened...Now after few fights with my husband I barely see her once a month but even that visit she spreads poison in her innuendo way and by appearing kind...She makes me understand her mean thaughts in an inderctive way and me all the time I feel speachless and angry cause whenver I answer she says Oh you are getting it that way or even she seems cool and uneffected and don't even listen to what I have to say...Her daughter now is 46 year old and she compares the childhood of her daughter with mine that it's still 6 months old...She never says a good word, when I cook delicious foods and invite her she never says it's tasty she just brags about her daughter and her grandchild (the daughter of her daughter) that's 12 years old she always comapres her with me imagine me 29 years old, that's annoying and stupid, I should ignore her but I can't I'm starting to hate her :( when I breastfeed my child instead of saying bravo she says wait that's nothing the other wife got more milk and gave her baby till 1 year and half (PS I am still breastfeeding) and she never did to any of her childs, the other day I was saying to my baby say mama and she heard it and said don't bother the first word should be daddy not mom ofcourse...and I always take good care of my husband and invite her to please him just because I love him he is on my side but he tells me to consider her as a big baby or a weak person and to ignore everything beacause she dosen't mean any of her sayings and has lack of mental abilities...(But I think she's smart and evil) + She somehow effects him over her old thaughts and beleifs...Again I'm starting to hate her:( what shoud I do...There's Much more but if I write it all I will write a book...