I start. Personally, doing meditation - following the Waking Up app by Sam Harris - and stoicism. Professionally, learning about functional programming mainly following the HTDP.
Reading books instead of news/blogs/social media.
Thinking slowly and clearly away from all that noise. Using Zettelkasten notes. Looking at raw data (from sources I trust) to make decisions instead of trusting gurus/influencers/people with an opion.