A bit off-topic here:
Since there's a significant chance one might survive any attempts to CTB, I have encrypted my external drive so that I can have access to it in case I fail to CTB and remain healthy enough to try again.
Also, I have nothing compromising on my phone (which I'll hard reset), and have done all CTB related research through my computer (which I'll wipe and encrypt before CTB).
In my particular case, I'm assuming authorities and/or loved ones will eventually have access to my personal data; and, most probably, they'll get disappointed in me when they see that dark side of me. However, no matter how hard you try not to, you'll always disappoint someone (including yourself). So, in my case, it doesn't really matter.
A century can feel like a long time, yet time passes fast enough so that the things you didn't want others to know will become as relevant as a 19th centuty book nobody found interesting.