Randy Couture says to use mental reframe fear. IE. The physiological responce to fear and excitement are almost identical. So keep telling yourself your excited you'll have the same adrenal responce without the anxiety.
SELF TALK (Randy Couture)
Successful athletes learn to control their emotions and achieve a higher level of performance by using lanquage to create specific results. This is an incredibly powerful skill to have in your arsenal. Olympic figure skating champion Oksana Baiul said, before she skated for the gold medal, that she talked herself into her routine. When Randy was kept in the ring waiting for Vitor Belfort to come out at UFC 15, he said to himself," He must be scared to come out and fight me," No wonder why he was smiling before the fight.
The words you use either out loud or in your head create a physical responce in your body. Language helps create the emotions you feel, the decisions you make, and effects how successful you will become. Positive lanquage gernerally creates a positive outcome. Choosing to use negative disempowering words either out loud or in your head, will almost assure failure