I feel like there is something missing in me? (please read...i am desperate...kind of long.)?

I feel like there is something missing in me. I don’t want to write anymore. I don’t really feel like doing anything that used to make me happy. I have a wonderful husband who loves me, I am healthy and I have a job. I work a lot and I have to work at least 40 hrs a week for me and my husband to make ends meet. We also take care of his mother, who is disabled. I have been taking care of her for 5 plus years. We moved to Washington and away from our hometown to have a better start. All that has been better, is our financial situation. My brother and sister in law cause drama sometimes. They want us to get along with my husband’s abusive father and me and my husband don’t want anything to do with him. My mother in law insisted on us having her mentally ill, abusive and hostile son living with us. All he did was smoke pot, eat all the food and complain about everything. He ended up getting arrested on new years because he started breaking everything and threatening to rape our roommate and slit our throats. He has been in jail for 3 months and we almost got evicted. Everyone is happy he is getting out of jail tomorrow? But me and my husband don’t want anything to do with him and I don’t him in our house. My husband’s family just accepts abusive people and acts like everything is ok? I miss my family back home. They really miss me too. I feel like my husband is my only real family here, because he always wants what is best for me and he doesn’t accept abusive people like the rest of his family does. His family even wanted to me to get my brother in law out of jail by saying I was drunk and I exaggerated everything. I refused and told the prosecuting attorney that he needs help and he is mentally ill. There is a protection order against him. I am unhappy because we came here for a better start and now all I do is work and am expected to act like being around mentally ill and abusive people is okay…like I should forgive people that make my life a living hell? I feel like I want to live on my own with my husband…but he would never leave his mom. We live right next door to my sister in law and brother in law and their children. I wish I had never come here…but I feel trapped by obligation to my mother in law because I love her. I have depression and anxiety and I take medication for it…but I feel so empty now…what do you think?