Get more information. Get the same questions answered from different sources. Be on time for appointments. When in doubt, trust your gut. Smile, especially when those around you are in doubt.
Confidence is contagious.
Timely and honest communication is critical in times of stress. Bandaids do not cure disease. Differentiate between things that are important to the others in your organization and what is important to you. There is a time and place to concentrate on each. Learn what those times are and act on them.