I can't really remember when I told my mum. Last summer I had 3 months off so I just smoked weed all day everyday. I usually smoked with mates during the day then getting home from part time work and smoking out my window. She kept smelling it so I just told her. She's cool with it if I dont do it too much. I now have a vape so she nevers knows when Im doing because she doesnt like me smoking indoors.