Right.

[Ikki is of the opinion that Roxas should always remember everything, but he knows it's beyond the kid's control what comes to his mind and what doesn't. No matter how obvious or how many times it has been told, there's no magic way for Roxas to say "I will never forget this" and for it to work.]

Try to not take it too seriously. Everyone forgets things, even things we shouldn't forget, you are just a more extreme and frequent case. Hopefully you will get better, you already try a lot.