Sorry to hear that.
I’ve had great care overall from physicians, partly due to luck but also because I seek out good care. Unfortunately, a good derm misdiagnosed a BCC in a prominent spot—which turned out to be infiltrative. Even the Mohs surgeons hesitate to pull out the dermatascope, which has been shown to improve diagnosis of BCCs over visual inspection alone. Diagnosis in this area needs some work IMO.
(FWIW I've been careful about sun protection since my teens and haven’t sunbathed since I was a small child. Unfortunately, heredity has a big hand in this area.)