Family dispute between son,wife and his mother and brother.

Hello everyone, Im married for three years and currently living with my husband. My husband is the eldest and take all financial responsibility for his mother and brother. There was a time when he used to send almost 80% of his salary abd he thought may be his mother will save some money from this. But she didnt saved a single rs. After marriage he sends only the amount they need for food medicine and other expenses. And according to all other relatives the amount is quite high. But we dont have any problem sending her that. Before marriage she literally forced my husband to buy another apartment. So he bought. In between we got married but the apartments possession was yet to get so whenever we went to kolkata we used to stay with them. But his mother never gave us a separate room she used to sleep with us in the same bed. Not only she my brother in law also slept in the same room. I started reacting so after a lot of fighting we were able to get another room but she always forced us to keep the doors open. She used to come on that room early in the morning and opened all the windows so we can wakeup. During cold she only gave us one single bedsheet and one pillow. She gave me food in a broken plate. Even she told me not to wear sindur because I only married his son legally so im not her wife. She used to fight with me if i wear sindur and red sari at all. Then after two years we did our social marriage because we wanted to end this situation. But still the mental torture was going on. Through out this period she told my husband that she ll not give any share from his fathers property because her younger son is not settled. Even she took 13lakhs from my husband to settle her younger son. which he never got back. During my marriage i received some gold ornaments which she wanted to keep with her. She literally cried and created scene so i get forced to do that. And to avoid these dramas i gave her my ornaments which i came to know she gave away someone and took some money (al though she tell me that she was supposed to receive some money but she didnt) now all i want my husbands money and my ornaments back. We only want that much amount from that property. What to do?