Butterfly sleeves will give the most air flow. Stay in the shade at all times you are not obliged to perform. Eat from the Health and Safety Food Trays all day long. Avoid folk you know are sun risks for the start. Your psychological strength comes from stamina and resilience.
Group hysteria is a reality as much as any self imposed barrier to better health.
Many have a strong spirit for the adventure of faire, but their bodies are sun sensitive and go down with regularity. Both are barriers to greater health and safety for sun exposed folk. Both break down your electrolytes and the sun protection they give you. With this edge for sun combat gone, no amount of other good food itmes will bring you to a level to keep your health strong in the hot weather. Set your mind to stay strong.