I want to thank whoever answered my question (Tour Meeting) for their excellent response. The whole answer was very empathetic and helpful – I wanted to highlight in particular the following parts were especially helpful in understanding my own anxiety:

1) Ask yourself why you feel the way you feel. If your brain offers “I don’t know” as an answer, probe a little deeper by asking something like, “What do I suspect the reason is?” or “What’s the most likely answer?”
–these are great tools and probing questions for me to use for this and future situations – thank you!

2) It is likely that the thought “I don’t even want to do this tour” is more closely tied in to a feeling like dread, resentment, or frustration.
–this is a great insight that occurred to me as an inkling as I wrote the question. Thank you!