Definitely some anxiety and fear that goes along with spice travel! Mostly of just not knowing what to expect, even though I've come to trust the spirit of the matter.
Some that I've traveled with say that the spice challenges you, and is perhaps meant to do so essentially. They hear the repeated messages "Do not be afraid" "abolish your fears" and are often presented with images of spiders and nightmares, if the spirit so wishes you to be challenged by your deepest fears. It's been in an everloving way, though, and has taught myself and others so much through this method. If you think about it, this could be the biological purpose for dreaming. Putting you in situations that are 'real' to challenge and prepare you for your future.
With that being said, take it slow. You won't learn anything from the teacher by taking courses way above your level. If you don't feel ready, wait for the right moment, or a moment you feel more courageous.