David Smail, a clinical psychologist and writer, has learned from his experience of thousands of clients that:
1. Absolutely everybody wants to be liked.
2. Everyone feels different inside (less confident, less able etc.) from how they infer other people to feel.
3. Few honest and courageous people who have achieved anything of real value in life do not feel a fraud much of the time.
Phew! And I thought it was only me.