People who knew me before say I am less fun now. How did you handle that?

People who knew you before are describing a social change, which is not the same as a measured treatment outcome. Less impulsivity and less interrupting can look like being less fun, and that may be ADHD symptom change. Feeling emotionally flat or less playful can also occur and may reflect a possible adverse effect rather than a success. If the change is persistent, distressing, or affecting daily functioning, bring a brief timeline to the prescribing clinician rather than changing the dose independently. References: https://www.nhs.uk/medicines/methylphenidate-adults/side-effects-of-methylphenidate-for-adults/ https://www.caddra.ca/wp-content/uploads/Canadian-ADHD-Practice-Guidelines-4.1-January-6-2021.pdf https://www.nice.org.uk/guidance/ng87/chapter/recommendations