Hello
So, your computer originally wasn't on Education edition, but you received the Education edition from your college, is that the case?
It looks like your Education was activated via the college account, not your gmail/personal Microsoft account. You can see your device under your personal account, but that doesn't mean it was the account that carries the license.
If you are no longer in school, there's no way to reactivate this but you will need to install the original edition, unless your school is willing to reactivate your college account. That's not a decision Microsoft can override.