Dealership

Purchased this 2019 accord on September 29th with around 31,000 miles after having it for almost a month the car had wear and tear that didn’t make sense to me. the CARFAX report showed that last reported miles was 49000 miles and the Titles says 49000 miles too. I’m afraid I’ve been sold a car with a funky odometer. I’m a first time car buyer and think I put myself in a hole when I was buying the car I kept the dealership open an extra hour and half, I was being pressured to sign paper work as fast as possible my dumbass signed the buyers order saying it’s 49000 miles and a signature on a car fax report that I didn’t even pay attention too. Can I do anything about this or is it something I deal with