[Tigereyes]

Maybe look at what interests you about each of those. Think about why. Research what you need to acheive to accomplish each. Does that process sound interesting? Is it realistic for you?

Perhaps also (informally) "interview" people who have or had those careers. Ask them what the job duties were really like on a day to day basis. Does this fit who you are and what you like? What did they like in the career and why? What did they dislike and why? What challenges have they faced that you might not expect? What would they do differently to pursue the same career? If they could start over at your age, would they choose the same career, knowing what they do now, and why or why not? (Researching questions to ask employers might help you develop further questions)

You know yourself best. Gathering information will be the best way to inform your decision. If you do not know people to interview, ask adults in your life if they know anyone who worked those jobs and if you can talk with them about it. Good luck!