Keeping it simple... I disagree with @r7sharp11. Sorry dude.
You're in the Key of A minor for the Verse
Then the Key of C major for the Chorus.
The E7 in the verse is a secondary dominant, no biggie.
The fluctuations in the chorus are personal interesting choices outside (yet mostly inside) the Diatonic Key.
Unusual, but nicely done, Avery. I recommend a bass or a midi drone note to solidify the root notes...
Personal choices aren't confusing... fitting in Theory into your personal musical choices can be sometimes however. It's not wrong bud. Bend the music to suit your style. Don't bend to it. And dont let people tell you you're doing it wrong either. Bend it.. yeah?
You have modulated in the verse from A minor to the Chorus of C major. A minor to modulated to C Major. You've just added a little colour to the chorus. A nice curve ball. And very interesting.
It is a standard concept... minor for the verse (more sadder and talky talky) then jumping to the major for the chorus (Happier and La La). Except for that curve ball right at the start of the chorus. I like it. And I'd like to heard it too. Upload an mp3... lets hear your ideas...