I should be a little more clear about my goals. Ultimately, I play piano and classical in particular because of my enjoyment for the instrument.
That said, thank you for the feedback on the Moonlight Sonata recording. The more I listen to the way that I play, the more I realize just how far I am from making the piece be at a high level. When I listen to, say, Barenboim, Arrau, Gilels, Richter, etc. They play it with much more competency than I could ever hope for. Even when listening to high-level students, like the one who performs in Andras Schiff's masterclass on YouTube, it's still night and day.
That said, I've decided to cut back on the level of new pieces.
I've removed Chopin's Grand Valse Brilliante, I never even fully learned the notes anyway, because it really is a piece that is too happy for my tastes.
I've added Brahms Intermezzo in A major (Op. 118 No. 2), Bach Invention No. 8, Scarlatti Sonata in D Minor K.516 (to complement K.517), Beethoven Sonata No. 1 in F Minor Op. 2 No. 1 First Movement, Brahms Sonata No. 1 in C Major Fourth Movement, and Satie Gnossiennes Nos. 1, 2, 3.
The only piece that is technically, perhaps out of my reach, is the Brahms Sonata in C Movement 4. It reminds me a lot of the third movement of the Moonlight Sonata but in a major key instead of a minor key. I do love the movement though, and my (now former) piano teacher plays the whole sonata unbelievably. There is even an excerpt from the fourth movement available on YouTube.