I still repeat my seed phrases in my head every morning when i wake up, it's a fun little ritual I have. And havent had to look at that single card for a loooong time. Eventually I burned it too.
Sure, you're free to do it your way, but keep in mind that the human brain is pretty fragile. The worst part is that things can go wrong with it suddenly and without warning. That’s why you might want to consider the bringing to bear
the method I’ve developed for the long-term digital information storage, including SEEDs. It could be a better alternative than "raping" your brain every morning trying to hammer in SEED phrase into your memory.
Sooner or later our memory will fail us, I remember Arnold S. saying that, that's why he always write everything down, on what he eat and how much he lift and how heavy he is. And it's gong to be true here, because sooner or later, if something went wrong and you can't recall, everything will be f**k up and you can't recover your seed.
So good luck with this strategy, maybe majority here will not agree with you with this method. With that, it's better to just write it down, back it up and hide it in place that no one can go except you or some of your family members in cases something happen to you.