Take the most 10 or 20 of the most complicated Kanji according your consideration, and apply this reviewing schedule and see if it works.
As it says, in any case you have to remember (play it in your head) at least once every 6 weeks (if you don’t use the info at all) or if you see use it constantly (at work or something) it’s not necessary, in this case they’re individual characters I guess you need to do that. So in 2 months time you’ll know if it works. 
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