Down that hole
- Backup. A lot. Always.
- Take notes.
- Ideally have a separate computer so you can easily google stuff if you break something, a lot of the times what you just broke is fixible with one simple command, you just need to know it.
- Start with dualboot
- Don't look for "windows replacement" in your new OS, this way you will be frustrated with differences, instead of seeing how the new way might be helpful.
- Backup. A lot.