So I ended up making two accounts using two separate emails on accident, and now I'd rather just use the one with the email I use most. I deactivated the other account, but I can't change the email on this account to that of the other. Thoughts?
Duolingo really needs a way to fully delete your account. What I would recommend is that you reactivate your other account temporarily, change the email to a random email (Duo doesn't have any verification checks, so that shouldn't compromise any personal info) . You can then deactivate that account again, go to the account which you'll be using to study, and the email address will now be free. Hope this helps!