Perspective.
If you lose, you can start back over without a charge for buy-in.
Pressure is a fabrication of your own psychology. It suggests you have a strong desire to win.
Play optimal and willing to fold certain
hands that may cost you the tourney (unless your confident of your holding). Keep in mind that regardless how great you play, variation is a reality for every player, pros included.
A loss does not suggest you did not play well.
A win does not suggest you played the best.
Hope you do well!