Lessons Learned
I also am new, with 1 competition under my belt. BUT, with that said, my observations were:
1. I did not use enough sunscreen. Bring a good hat. Even if you have tents, popups etc, there is no escaping the sun
2. Don't be so focused on all the tasks that you forget to enjoy it.
3. BBQ folks are probably the nicest folks you will ever meet. Do as much prep as you can ahead of time so you have time to share a cold beverage with as many folks as possible.