Use google drive. It automatically saves for you and as long as you know your email and password, you can access it from any computer. Plus it’s free.
I started writing with Windows 3.1 on a machine with 2 MB of RAM which crashed at least once a day. Now, I press Ctrl-S almost as often as I breathe, literally every sentence and every time I pause to think.
And thats the story of how I failed my history class