Don't say that, I murdered this piece, it's completely out of my league.
But for me to play this is as tough as an actor putting out a good performance in a language he doesn't know because I have a very rudimentary knowledge of chords.
I only know major and minor chords and scales and Debussy rarely uses them, so I can't memorize any chords or scales, just the individual notes.
That being said, I really enjoy playing it and I am really happy I can play it even this badly.
I can play by memory Rêverie, Arabesque 1, Pagodes, La cathedrale engloutie and La fille aux cheveux the lin.