Whats a good lifestyle for adhd?

It can be treated. Adhd can improve sugnificantly with medication. It is worth to control symptoms with proper medication than changing lifestyle and continue being underproductive.
Many non-drug option. I have been treating adhd symptoms successfully for over 20 years and have never had to prescribe an adhd med. My approach is to find the cause & fix it, which can be diet changes, allergies, nutritional deficiencies and learning & processing problems. When these are addressed, the adhd symptoms usually resolve and meds are unnecessary and no risk of drug side effects.