I like the arpeggios, but some of the notes are really dissonant. Make sure to brush up on some theory, the fundamentals are always important!
Overall a pretty simple song that is just fine being simple! For me it would be called “That song that plays when you encounter the person who zero-bombed your song when you were 12” lol
EDIT: I just learned from my piano teacher, but I've heard musictheory.net is good too. There also plenty of videos on the subject. Honestly, scales are the most important thing to learn!