How to save myself from my mil?

I am writing this is post in lot of confusions so pl forgive me if some mistakes. I am the only daughter to my parents. My hubby is an engineer. After completing my graduation I got married in 21 years. It was an early age to getr married but my parents wanted me too.

. From the beginning stage of marriage till date I could not manage either evaluate my pil’s and in laws yet...My mil used to pinch me in each and everything even in daily chores(it’s a long story I ll describe it later). When I ask my hubby he used to say she is like that only Pl adjust. He couldnt do anything more than this.

1. Before marriage my mil behaved with us very well. From next day of marriage she started her game and its still going on.
2. She commented badly on my complexion b’cos she is fair which I m not. This wounded me a lot.
3. Even though I cook well she used to scold this and that.
4. She never allowed me to go out with my dh any where. I had to beg her lot to go to my mom’s home.
5. She never allowed me to mingle with the neighbors. And even I should not squeak out in balcony.
6. I was treated badly with all harsh words which ever could be fired for not been conceived. I got conceived after 1 ½ years.
7. If I or my hubby defends my part she ll threatens that she ll commit suicide. And she did this one time. I came know from my in laws wife that it is her usual drama. This caused them not to defend and adjust her in the ways she was.
8. When my son was 8 months my hubby got job in <?xml:namespace prefix = st1 ns = "urn:schemas-microsoft-comffice:smarttags" /><st1:City w:st="on"><st1lace w:st="on">Muscat</st1lace></st1:City> I said I ll be staying with my parents and not with her. For this she created a big drama. Atlast I went back to my parents.
9. After I too came to <st1lace w:st="on"><st1:City w:st="on">Muscat</st1:City></st1lace> in next 2 years. When we returned to Chennai for first time she demanded to buy a house to stay alone she doesn’t want to stay with my in laws. After these she was acting for some years and we thought she is now ok but she was not.
10. We are sending money monthly for their expenses.
11. Even we brought my pil’s to <st1lace w:st="on"><st1:City w:st="on">Muscat</st1:City></st1lace>. It was my hubby’s wish. Even she did some unwanted things that I ll describe it later.
12. But last year when we went for our house warming function she created a big drama (that we where not at all caring about her and giving proper respect to her) before the entire crowd. My husband got too much ashamed from this and he said he ll never speak to her again and he ll not be sending any funds from his part.
13. Due to this they lodged a complaint on my father that he is not allowing us to send money to them. In which way my dad is connected to this I don’t know. Police said nothing is wrong on my dad’s part.
I sometimes feel is she a psychic. Why they behaving like this and what we should do to safe guard ourselves from them. And I like to show my protest to her and how I can. I am totally confused.

I will much appreciate <st1lace w:st="on"><st1:City w:st="on">ur</st1:City></st1lace> ideas. Sorry for such a long post.