You are going to give a talk about your career choice.
Remember to

From my point of view in our morden world the most popular jobs, which are popular among teenagers are couriers and waiters. These jobs don’t need high education and qualification and also they are easy enough to execute.
When I was a child I dreamed a lot of being a vet. The reason is my big love to pets and a strong desire to help and to save them.
In my opinion, the only one person, who can help you to make your own career choice is YOU. You should rely only on yourself. Nobody except you can make the most important decision in your life. You should rely on your own wishes and abilities to make a right choice. In addition I should say, that you should believe in yourself and really assess their capabilities. Good luck.