Try to turn off WebRTC, use NoScript plugin and FireFox browser. Also use double-VPN on your own VPS/Dedicated servers. Of course you need to install openWRT or ddWRT Linux on your router, and use only GNU Limux OS on PC. Windows is spyware shit.
tbh even all these measures together are probably not enough
On the bright side, they don't give a fuck nor have enough resources to do anything to you - unless you become either a political/financial threat to them or do something really dumb online.