Before your presentation, you need to get in the right mental state and feel energised about your opportunity to stand up and speak. Challenge any negative thoughts you are having by finding corresponding thoughts that are more resourceful for you to be thinking and set up a good experience. For each negative thought, ask yourself ‘What is the more positive thought that I could focus on (that could also happen)?’. Thinking about what you want to happen is more likely to reassure you and set you up for a good experience than focusing on undesirable outcomes.