Mentally depressed by husband nd inlaws

I caught my husband taking am kind of powder form thing in small packet my inlaws knows everything about that.when I caught that powder packet from my husband .my inlaws start abusing me.my father in law say that he drink very much in his early age...but it mother in law never raise any kind of voice.so don't u dare to say anything about my son.husband locks his phone never show his phone...he take his phone even in washroom.his family always want me to stay silent against this.i m student nd I am very much depressed by al this behaviour of them.my husband always lie against anything....