Also, if you have 12BTC on a software wallet my advice inmediately changes to: Buy a hardware wallet NOW!
What's wrong with a software wallet? Mine is password protected, stored in a veracrypt volume, which is stored on my encrypted /home partition, and included in several backups stored in different air-gaped locations and only ever connected one at a time. (and most importantly, I'm not running a toy operating system.)
The problem is increasingly sophisticated bitcoin malware. One guy on reddit last week lost 16 bitcoin from Bitcoin Core that was password protected. His hygiene may not have been as good as yours but your password is briefly vulnerable when you open your wallet. Hardware wallets are cheap now.