@NanoNano – Sorry for my initial response. I’m just suggesting that there is no reason at this point to have your data sitting on your OS partition (as @ragingloli mentions) and with no backup.
My wife still hasn’t yet transitioned to a Chromebook, so some maintenance is required for her pc. But she saves all files locally in a folder that is auto-synced to Dropbox. This way, there is no backup required, and our house can burn down and she’d be able to access her files from anywhere. Plus, they’re available on her phone.
Anyway, there are many options now due to the affordability of external drives, cloud services, and auto-backup services. The days of making your data dependent on the health of your pc and OS are long gone. And that’s a good thing.