your hard drive (no not the big box that sits next to your desk) is going to fail. it will fail sometime between tomorrow and the future. it’s a fact of statistics that it will happen. thing is, you don’t know when it’s going to go away. that’s why you need to have copies of everything important to you. this includes pictures, writing, art, 3D, music and everything else. lots of things take multiple days to create that if you lost could not easily be recreated. you have no choice but to fight the future.
Backing up is something that everyone needs to do.
How to back up your Mac with RSYNC
Carbon Copy Cloner
PSU Blast Image Config
Windows has lots of solutions.