It is possible and not that difficult

Want to reinstall or upgrade your Linux Mint distribution, but don’t want to lose all your settings and data? It’s possible and not that hard.

Start by backing up your existing operating system, just in case you need to restore it if something goes wrong.

Before installing a fresh Cinnamon Mint, it is best to make a bootable copy. The most recent release is now 19.2, codenamed “Tina”.