I was reviewing the different alternatives I have (like ext4 encryption) but I think all of them are vulnerable for root to just enter into my home account and see what's stored in there, which is something really easy to do when someone gets ahold of the computer.
I'm looking for a way to make my files unaccesible, even for root, even if someone takes on the bare metal. I'm willing to risk losing my data if I forget the key, that's not an issue, it's actually desirable.