Yes! Everything else in this thread is interesting but without automated backups it's all just temporary.

I would add that it's a good idea to automate backups using more than one method as well. For example, use a popular software package but also copy important stuff to an extra drive. A cheap setup with a Raspberry Pi + USB drive plugged in to your router will do just fine.

I was kinda like a backup freak for my PC, but once I got starting using cloud drives like google drive, it kinda takes care of the problems of hard-disk failures (which are definitely bound to happen every couple/few years).

Untested backups are a problem, though..

Now automating Radom file restores and checksumming is a great idea...