In-laws have dual behaviour husband does not believe me what to do

My in laws act in presence off my husband as if they love me.in his absence they torture me mentally.they disrespect my mother always.criticizes my dark skin color. They tortured me to give birth to a son but not a baby girl while I am pregnant. And also threatened me to send away home.unfortunately I gave birth to baby girl. They act love in hubby presence.now my daughter is also dark skinned girl. They always criticize me for that.. husband won't believe, understand, listen and support me. He is very lazy person.he Don't even care for me. He has more belief in their parents. we are different caste but same religion.he promised me a decent and happy life after marriage. In laws always torture us to shell out money for perform rituals.they don't even respect me. What should I do to avoid in-law's torture?