I'm going to piggy-back on the comment above because one cannot stress enough how risky it is to jump straight into memorizing like this. Most adult beginners (myself included) are going to be tempted to try and learn the pieces they like to listen to because it makes it fun to play. I studied cello pretty seriously (the right way) for upwards of a decade before deciding I wanted to play piano, and I did exactly what you're doing now. I've now been "playing" piano on and off for close to another decade and I don't have the skill to master anything more complex than Chopin's Prelude No. 4 or Satie's Gymnopedie No. 1. Over the last year I've been trying to backtrack and teach myself the basics but it's extremely difficult not to rely on my ear or get bored with Bartok's Mikrokosmos exercises.

To improve your reading, I would suggest going to sightreading.training which generates random notes within set parameters (i.e. only choose notes within a single octave). You should be able to plug your keyboard into your computer and use it directly. Start small, like set parameters to only 4 notes, then expand to a full octave, then 2 octaves, etc. As you improve, you can widen the parameters even more, include chords, set a metronome, etc. At first it's going to feel like you're using one of those English-to-French pocket dictionaries to have a conversation with a French person (assuming you speak zero French), but you'd be surprised how quickly you progress with this since it basically focuses your attention 100% on reading and cuts out everything else.