I’m still lurking because the WK forums are my only social media
A few years ago, Tofugu hired me for a short project to redraw all the radicals as vector graphics. Even within the radicals, there is a lot of repetition of certain shapes, and the several weeks I spent drawing them really cemented the fundamental shapes in my head.
I have pretty good visual memory, so my natural tendency while going through WK was to just remember the kanji without mnemonics and, by extension, without the radicals. And that’s fine for recall (e.g. reading). But for actual production (writing), they radicals are a huge aid! Now, having drawn the radicals for WK, I finally find myself looking at kanji as compositions of radicals… which I know was WK’s intent all along, but I never had incentive to use them that way. So now, as long as I can remember the radicals that make up a kanji, writing comes with very little effort.
Anyway, best of luck in your second time through!