I'm new to data storage and management, and have some interesting difficulties, can y'all help me figure out how to go about organizing and setting this up?

I'm in the US Navy and am trying to build a somewhat formidable library of movies, shows, and books, to keep me occupied on an upcoming deployment. I'm probably going to be aiming for somewhere in the neighborhood of 20tb of data in various formats, but the storage needs to meet a few criterion.

-I need it to be resistant to minor impacts and shaking from the ship moving

-It needs to be stored without continuous power (except when in use)

-I need to be able to add to it from other devices as people share their libraries with me

-Ideally, I'd like to be able to access it from my Samsung Galaxy s10e via its usb-C port, but this isn't necessarily a requirement.

-It needs to be reliable. If I lose data, it will have to remain gone for the remainder of the deployment, possibly upwards of 10mo, so I'm trying to preserve what I have.

-Finally, I have limited physical storage room, I would rather not use more than a shoebox sized area of my locker for this library

As of yet, I only have a 5tb WD Elements HDD that is mostly full. I'm not completely sure how I should go about storing and organizing all of this data, can y'all help me out? I'm pretty new to data hoarding, and could use advice.