The impact of environment on mental spirals is underrated. I see it clearly in two pickup basketball groups I play with: one where people know your name, greet you warmly, and when you make a mistake they tell you how to improve in a way that makes you think "I can do better" not "I suck." The other is critical, lots of punching down and tense.
The key insight: when you're surrounded by people who genuinely create an atmosphere of belonging and want you to succeed, you know their feedback comes from good intentions. This creates a virtuous cycle. You want to take their advice, and once you improve you naturally want to give the same back to others.
Reminds me of this Simon Brodkin video perfectly capturing startup energy: https://www.youtube.com/shorts/q_FmhWARJ7Q