Imposter syndrome

It's new territory. 

The fear isn't just that you bring the wrong cards to the table, it's that everyone else's cards are probably so good.

Your work is more important than before and you might not succeed. Everyone else seems to carry themselves so well. I'm positive they know something that you don't. They may even know more than you. You want to be around people you can learn from, despite it feeling intimidating.

There isn't anything they know that you don't have the capacity to understand.