Interestingly, knowing what you can’t do is just as important as knowing what you can do. I remember as a young nervous psychologist, considerable hesitation came from me thinking I needed to be able to work with and fix every one of their psychological problems. Over time, I started to work out which people I work best with and which people I needed to refer away. This was so liberating! I knew my limits and I only worked with people I was well equipped for.