I Want to Join the navy, but I don't know what Job in the navy Would be for me?

I'm a high school senior and I'm girl . I'm really thinking about the navy , but I'm not sure what to do in the navy. I wanted to do something in the medical field because I love helping people but I also love computers but I do not want to sit at a desk all day long . As a kid I loved being around jets and planes and I love doing things hands on. I really don't mind being on a boat or on land , But I want a job that pays great and if I retire I can do something as a civilian. Nothing like a tank operator because where would I drive a tank as a civilian. I have two jobs in mind but I need a few more options . I have in mind a Deep Sea Diving Independent Duty Corpsman and Search and Rescue Medical Technician. Please help me out ...