The core idea of Zettelkasten:

1. ONE (shared) dump-pile of all new notes. Your 2,600 pile should do fine

2. REGULAR 'cleaning' of the new notes: a) Each note gets one or many tags (#urban-decay #gaming #assets) b) Each note is trimmed down to its essence, ready to be used for reasonable purposes. (e.g further writing)

3. 'cleaned' notes are moved to your golden store, ready to be found by searching (search "#urban-decay")

You have 1. You need 2. It's slightly work-y, but interesting and ... fun. Rediscovering and polishing forgotten dust-rubies.

I keep all that stuff on a Wiki that I run in my house.

Google Keep CherryTree - which is much nicer than the web site portrays https://www.giuspen.net/cherrytree/

Notion — good for linking related notes

LogSeq, with the "brain" shared across devices using Koofr over webdav

I'm lazy, so I use Google Keep and will probably regret it someday.

...sending myself an email