Pageants and diabetes

hey I'm involved in a natural pageant system as a state queen and getting ready to go to nationals in June. Knowing the success that Nicole Johnson had as Miss America I felt like this would be a breeze, but I'm nervous that I'll screw up. Any advice on how to deal with the pressure? There are 2 others in my age group (21 and up, married or single)?

BTW, I'll be going through 4 clothing changes in quick succession- and it won't be easy with MDI's