1. Via negativa
More effective to REMOVE toxic people, thoughts and substances/media/technology/social-media/news than to “add” ‘healthy’ things and people to your life.
For example, best to quit sugar. Sugar can either directly or indirectly lead to Type 3 Diabetes (Alzheimer’s disease, which is a metabolic disease of the mind).
For example, cut toxic people from your life. I cut my dad out of my life cold-turkey, and my mental health has been a quadrillion times better ever since.