My ten year old has had awful behaviour for a few years , only at home, not at school, but now our relationship has just turned to nothing. He throws things at me, calls me a witch, pokes things at my my bust in front of friends, swears and sticks his finger up at me, slams doors at me,, steals our phones, my tablet, plays minecraft at midnight, roots through the cupboard to find chocolates/biscuits, went through a phase of using scissors on clothes/furnishings. I won't describe what his room looks like. What can I do next?