history: Tomorrow, I am doing a presentation to my CEO. I am sure that I will give a good impression. Tomorrow_comma_ I am doing a presentation to my CEO. I am sure that I will give a good impression. Wow_comma_ good luck.  I hope it all goes well. It sounds like you're confident that it will. Have you done one before?
current: To the CEO of the company, no, I didn't. I feel confident.
next: I know you're do great then!  Hope it brings you a lot of success!