I could not agree more with that 30 day challenge.
I started intentionally 3 new skills every month for the past 5 months now.
The experience has been phenomenal. You are absolutely right, it does change a life.
I apologize for the shameless plug, but here’s an article I wrote about my process and how I choose the skills: I learn 3 new skills a month, and so can you!.
Anyone can do it.