My suggestion, go to a quality bike shop ask them to inspect and advise, maybe just replace the tyres/tubes because getting flats.......aaaahhhh!
Flat tires is just part of biking. Much worse on paved roads than gravel.
I ride 20 miles per day and patched tubes more than 100 times over the past 9 years.
The puncture liners help but don't prevent all flats.
