Updated Ipad, now my password won’t work.

basically as the post says. the passcode i’ve used for 2 years doesn’t work after updating overnight. can’t reset it since i don’t have a macbook. any help? (i also don’t have means of transportation to a apple store since i like about 70 miles from the coty that has one.)

Updated Ipad, now my password won’t work.
 
 
Q