yeah that's pretty much what my life has been like too lately. had to buy a new hdd to store em x)
Been considering making an excel sheet so i can keep track of what i have, where it's installed, where the ISO are stored and VNDB links.
That would be one hell of a project though and i'm quite lazy
I have several HDDs for the same purpose, though I'm mostly just casually collecting games now
I use private labels on VNDB to keep track of where everything's stored (for example, putting a physical sticker called "A" on a certain HDD...whatever visual novels are stored on "A" get the "A" label on VNDB)
I have been really lazy in regards to backing all this data up though
Btw I use the "wishlist" label for games that are either dead or I'm unable to find, though I rarely ask for them in the hentai games request section as requesting a ton of games (in a short period of time) that will mostly likely not be played for a long time seems in poor taste