Encrypting is usually a simple matter of turning encryption on via your devices settings.
By enabling encryption you make hacking your device either impossible or very difficult and resource intensive. “Standard” password protection usually is simple for a hacker to bypass.
Encrypt all devices that you use (own), including phones, tablets, laptops and external hard drives in case they get lost, stolen or targeted.
WARNING: make sure you have backed up up your devise before encrypting it.
In addition to encrypting devices, also store your sensitive documents in encrypted folder.
This gives an additional level of security and allows you to store the encrypted folder on a thumb-drive and on cloud storage such as google drive and dropbox.