But "I have nothing to hide!"
"Arguing that you don't care about the right to privacy because you have nothing to hide is no different than saying you don't care about free speech because you have nothing to say." - Edward Snowden
Text messaging: Signal
Mobile OS: LineageOS
Password Manager: KeePassXC
2FA: FreeOTP for two-factor authentication.
Surveillance Self-defense by the EFF.
How to encrypt your entire life in less than an hour by Quincy Larson.
A Modest Privacy Protection Proposal by Jameson Lopp
The Hated One a privacy focused youtube channel.
I've Got Nothing to Hide' and Other Misunderstandings of Privacy by Daniel J. Solove
Turn It On - guides to turn on two-factor authentication (2FA) on your accounts.