So the tip is: to find purpose of life watch not the life itself, but look at youself, watching the life.
https://www.amazon.com/gospel-selfless-action-according-Gand...
I guess you got to keep looking, keep trying intuitively based on what you know yourself, create a feedback loop from your attempts and when you find your purpose, you will know. Good luck!
The extremes are but 2 points on a huge spectrum.
However, the extremes are noteworthy points, and half-measures can be bad. So don't shy away from the extremes either.
tl;dr: Don't kneejerk. Everything is nuanced. But also don't be too afraid to commit and ending up believing in nothing.