Audition problems

Hi Camille !

I will go to an audition   next week at conservatory.

Today i discovered something wrong ,  after    the daily warm up  routine  my chords are tired, why ? I didn't force anything.

The audition its next monday, what i am supposed  to Do ? The time is short.. 

Hi, Daniel! Sounds like it's a good time for some vocal rest. Tired vocal folds are usually a little swollen, and the best way to reduce swelling is to avoid singing or speaking. I encourage you to rest for a few days, then begin gently vocalizing with lip trills, NN/MM, etc. Continue to practice your audition material by listening to the song, mouthing the lyrics (and breathing where you'll breathe to sing), and eventually returning to the melody on something gentle (again, a lip trill or other semi-closed position).