I want to share the good news, but still need some support

Hi dad, I got my dream job.. I’ll be flying a B767 for a cargo operation. I’m halfway done with training. I finished ground school and I start simulator training tomorrow. Im the youngest in my class by far..I’m nervous, Ive always lacked self confidence and I never feel smart enough for anything. It’s a tough training program that requires a lot of studying and memorization day to day… can you encourage me? Can you lend me some inspirational words? Words of motivation?