What is a blog post that changed your life for the better?

Professionally: Bryan Caplan's "Job Search and the Laws of Wing Walking". There are a lot of posts which echo this basic point, but he essentially hammers home the idea that the first job is usually the worst job, and if you're smart you can use it to quickly get into something better. https://www.econlib.org/job-search-and-the-laws-of-wing-walk...

Non-professionally: Thing of Things's "Models: A Summary". I basically reread this thing every day for a few months in college until my brain reprogrammed itself into a shape conducive to finding and dating people. https://thingofthings.wordpress.com/2018/05/25/models-a-summ...

Don't call yourself a programmer

https://www.kalzumeus.com/2011/10/28/dont-call-yourself-a-pr...

His advice about salary negotiation was also formative for a younger me.

After reading this one: https://www.ratherlabs.com/blog/the-roadmap-to-become-a-bloc...

Implementing these practices has brought a remarkable shift in my overall programming life and allowed me to move on to new horizons