Your first step will be learning to dry it and keep it dry. I can recommend a scale that can resolve to at least 0.1g so you can measure the weight loss while drying. This will help in seeing when it’s sufficiently dry (put it in dryer and weigh it every hour) and if it took moisture again.
There are so many VPN providers selling your data, being operated by the feds, operated by cybercriminals etc. it really doesn’t matter just as said in 8.
Room-scale DnD dungeons anyone?
It looks like there are multiple layers printed without feeding filament, which causes these frays to build up. Could it be that the filament clogs after this layer? Or do you see that filament still properly feeds later? This could happen for example due to heat creep and the filament getting too warm/soft in the extruder to properly feed or you trying to feed too fast.
Use the recommemded parameters: https://datatracker.ietf.org/doc/html/draft-irtf-cfrg-argon2-04#page-11
Also consider WebauthN/Passkeys. They are much less ressource intensive on the server but useless to an attacker when the database is leaked and as such don’t rely on slowing down the crypto operations.