Internet Privacy

Here's Lookin' At You

1. Disable 3rd party cookies in browser.
2. DNSCrypt (Install it) (This encrypts your DNS requests) (May need Net Framework update.)
3. VPN (Private Internet Access is what I use) Look at PureVPN or IPVanish
4 Set Startpage as default search
5. Firewall other than Windows ???? I hate all of them. Comodo has become a bloat factory.
6. Use Signal Private Messenger

https://www.grc.com/default.htm  to test a few things.

Maybe use Nirsoft's QuickSetDNS to change you DNS server. Handier than doing it manually.
1. DNS.Watch 84.200.69.80,84.200.70.40
DNS.Watch is unique in offering an alternative DNS service without the website logging found on almost every rival.
2. OpenDNS 208.67.220.220,208.67.222.222
3. Cloudflare 1.1.1.1,1.0.0.1 claims to not save and deletes logs every 24 hours (very fast)

Sharing Privately
https://onionshare.org/ (you will need to use the Tor Browser on both ends)
Tor Browser
Portable (Install simply means copying the folder somewhere)
Open Tor and copy shared link into address to download shared material.
This keeps from needing to rely on a third party to distribute your files.
Hopeless for large files.