Hi Tinna,
I'm so sorry you were put through all that. The abuse is in itself a monster to deal with but add the "family in denial" factor in and, well, yikes.
I know my mother lives in her own little world of denial. Maybe that's what's going on with yours. Maybe it's misdirected anger. Sometimes mothers would rather think their child is lying rather than think the person/people they love could do such ghastly things.
My mother's drinking was just salt in the wounds.
Glad you're here. I hope we can help.