No, it didn’t. Maybe your score on Credit Karma did, but that’s because Credit Karma’s system of estimation (VantageScore I think it’s called) stops considering a loan the moment you pay it off, while the actual credit reporting agencies continue to consider it (re average age of accounts) for 10 years after closing if it was in good standing, or 7 years from ‘date of first delinquency’ if it was closed because of charge-off or something like that.

My own average account age is less than 10 years, yet my credit score is in the 800s, even though I have no outstanding loans, I just use my credit card for everyday purchases and pay it off every month.

So ‘get your ignorance the fuck outta here’ and open yourself to learning how things work.