What can i do?can anyone plz help me?

i'm a girl of 23.i'm married for 1 year and staying with my husband in his house along with his parents and a sister aged 22. like most families,my parents tought me customs about living with the husband and his family.i also tried my best to make a good relationship with all of them. my husband loves me, but sorry to say ..i'm never welcomed to the other three since the first day of my marriage.sometimes they r too rude...i just dont know why. if i was guilty for anything, they could have told me,coz i also could make any mistake.u at least have to let me know the reason before u punish me,right? we can't go to a separate house coz they wont let their only son go far.very often i p sleepless nights weeping and my husband is also frustrated coz he's hardly got anything to do.i cant tell it to my parents coz i know it will b painful for them.i tried my best but 1 year is quite a long time for building up a good relationship among people living under the same roof. now i'm tired.