Why does the speaker deliver the speech?

Well, as you can see, I am surprised and overwhelmed by this award. I’d especially like to dedicate the“Young Entrepreneur of the Year”trophy to my mother, who has always supported me. Actually, it was in my mother’s garage that I developed my hobby into a successful business. I started as a child, building the electronic project kits that she bought me. I soon began making modifications, and from there I moved on to design. Now I provide secure computer networks for large corporations all over North America. Well, I’m one of those lucky people who have become rich doing what they love! Thanks again to everybody who has made it possible.
Number 89.Why does the speaker deliver the speech?
Number 90.How did the speaker first become interested in his field of work?
Number 91.Why does the speaker say he is lucky?