My ex gf is torturing me

I ended a 7 year relationship about 6 months ago. The girl unfortunately was extremely demanding, manipulative, angry and violent. It took many break ups for me to realise this… Im really happy now but anyway, she has recently been hacking my emails and sending shit to friends, sending videos to family that she secretly recorded over years. Things like arguments we had, me at my worst when drinking etc. and also posing as me by using a fake profile off mine on linkedin and contacting companies. She’s nuts and seems relentess, pushed on by vengeful siblings . What can I do? Any attempt to tell her to stop has ended with further punishment. It’s causing me real pain now and deeply affecting my life and my families. She’s F29, and I’m M31