I don't recommend using a Cloudflare DNS resolver, I would use something like AdGuard. Also using either TOR browser or Firefox with super hardened settings (changing about:config, NoScript). One of the more important things is not using something like Whatsapp or Telegram, but something more like Signal or Keybase, or Rocketchat, or riot.im. Also don't use Dropbox, iCloud, etc. but something like Nextcloud or KBFS(not so sure about this one). If you have an Android or an iPhone, use it rarely or close to never and use your computer instead as you can do all the things on a computer.