Reddit reviews 1/8" x 2" C360 BRASS FLAT BAR 12" long Solid .125" Plate Mill Stock H02

This is the best way in my opinion.
go here: https://iancoleman.github.io/bip39/
select 24 words and hit generate. (don't try to get fancy and supply your own entropy!)

you'll get 24 words. Write them down on a piece of paper. better yet, go to amazon and buy this and hammer them into this

now, keep that somewhere super safe. maybe make two of them and dig a hole in your backyard and stick one in it.

also, stop using electrum. They use a different seed standard which doesn't work with other things. That seed will work with mycelium, Ledger nano, Trazor, etc)

cheers.