Jay argues it isn't. He says most of us have a validation problem: we stopped asking what we think and started asking what everyone else thinks, reading 100 reviews before buying a couch, sending outfit photos to the group chat and overthinking how a post will be received before we let ourselves move.

Confidence is wonderful but inconsistent: some mornings you feel unstoppable, others comparison has you questioning everything. Confidence says I think I can do this; self-trust says even if I can't today, I know I'll figure it out. One depends on predicting the future, the other on believing in who you'll be.

Jay cites Albert Bandura's self-efficacy, the belief in your ability to handle challenges. Research shows it isn't built by positive thinking but through mastery experiences: every time you do something difficult, keep a promise to yourself or recover from a setback, your brain gathers evidence that you can handle hard things, like learning to ride a bike.

Research led by psychologist Naomi Eisenberger found that many brain regions activated by physical pain also activate during social exclusion, so the brain treats rejection as a threat. In ancient tribes, rejection cut access to food, protection and shelter, and our brains haven't evolved as quickly as our environment.

In the 1950s, participants were asked which line matched the length of one on a card. When actors in the room intentionally gave the wrong answer, many participants abandoned what they could clearly see and agreed with the group. They weren't confused; they trusted consensus more than their own perception.

Belonging is the feeling that you're worthy of love and connection simply because you exist. Approval is someone else's opinion about your choices, ideas or behavior. Jay says we often treat them as the same, believing that if someone disapproves of a decision they are rejecting us as a person.

Jay explains that brains use mental shortcuts and confirmation bias, so loved ones filter today's version of you through years of memories and labels like the shy one or the messy one. Strangers often believe in you first because they only see who you are today. Growth is demonstrated, not argued.

Jay suggests periodically auditing your desires. Ask whether you would still want it if no one could see the decision, with no photos to post, no one to impress and no timeline to keep up with. The mere exposure effect means we absorb others' definitions of success without realising it.

Day one, make a decision without asking anyone. Day two, share an idea you'd normally keep to yourself. Day three, take a 20-minute walk without your phone. Day four, enjoy something without posting it. Day five, say no without over-explaining. Day six, do something you've put off. Day seven, make a promise to yourself and keep it.

No. Jay says wisdom often comes from mentors, loved ones and people who challenge our thinking, but there is a profound difference between seeking perspective and surrendering your agency. People with an internal locus of control treat feedback as something they consider but not something they obey.