So it’s only a little thing, but this might help some people so putting it out there.
Whenever I got a kanji wrong from mistaking it for a similar kanji, I would bring up a word doc, throw both of them in, set them to size 72 and nail down a mnemonic that differentiates them.
While that’s one tip in itself, I want to tell people how helpful the radical info pages are. Of course, with some radicals there are tons of kanji, but when it’s a radical that has <10 kanji, it’s a really helpful perspective to see all the kanji using that radical side by side.
I only started looking at them recently. But now the first thing I do when I get a kanji wrong through mistaking it for another kanji, is scroll down on the review page, and open in another tab the particular shared radical causing confusion.
Those radical pages are a good resource which you might not be using even though it could be helpful so give them a look sometimes!