How can I make myself happy?

I have problems at home with my in laws,(mother in law and sister in law) but they dont want me and my husband to move out. that way they have control over us. Sister in law is allowed to talk to me however she likes, and mother in law allows it. they both control my husband in manipulative ways. they've said some hurtful stuff to me and i take so much crap because i dont like arguments so i let them bully me. so i just try to focus on other things that will make me heppy,. i dont ask a lot from life, i just want to be happy, and try to find a medium where the family can be happy too. But i cant help but just feel so pessimistic about life.