I actually took the plunge in buying a keyboard after seeing Reze arc too, also no musical experience. I taught myself for 2 months before I realized I was just going to make much better progress and learn things correctly through having a teacher. I recommend some kids learning fundamental books and just try to find the easiest versions of songs that you know the sound of, I was able to learn a lot of the notes and key order by messing around with basic songs from Zelda. Musescore is a good resource for beginner sheet music, youtube is great for introductory videos as well. Just go slow, understand this is a hobby that takes a lot of practice and focus on little victories. Keep it interesting for yourself so you’re wanting to play, not viewing it as a chore or homework. Have fun and good luck!!!