Mental Resilience

Since many people are being diagnosed with depression, I wonder how to build mental resilience. I know it is part genetic and part environment, so I am more asking about the environment part.

I understand the concepts of small stressors and antifragility, but they don’t really answer my question. Are we having more fragile people? Are our environments getting worse? Or the ratios are the same and it is just advancement in diagnosis and the internet makes it seem bigger?

How we make sure people are mentally resilient? How do make them not reach their breakdown limit?

I don’t know.