It is common before and while delivering a speech some individuals experience apprehension or fear to face the situation or make any mistake. However, there are many techniques to reduce or deal positively with his apprehension or fear, this includes preparing and rehearsing the speech, using different tools such as notes to avoid forgetting important points, imaging the situation positively and consider delivering a speech is an opportunity to share ideas. Considering this, it is true imagine a positive outcome can help speakers with apprehension and give more effective speech because this allows the speaker to focus on positive aspects and avoid thinking he/ she will make mistakes which reduces apprehension and therefore, would help the speaker to focus on the speech rather than on his/her negative feelings.
This character does not fulfill the characteristics of a tragic hero. He is not good to his people and he does not save anybody. Instead he treats them unkindly and flees his kingdom. Even though his story is tragic, I would not consider him a tragic hero.