As a quote from "Lord of the Rings" goes: not all who wander are lost. It is OK want to be different things, to have different experiences and to be undecided about your career path. There is no rule that you should have only one career either. Why don't you try shadowing someone who works in the medical field to see if you are still interested? As for your aspiration to be a youtuber, you can try that, too and see how you can get more subscribers while still being in school and/or pursuing a nursing career.
I have suggested some steps below.
Alexandra recommends the following next steps:
- Pick 2-3 career options and make a list of what you like about them and what you don't like
- Look for someone in that career field and try to "shadow" them for a day or talk to them about his or her experience.
- If you feel particularly drawn to one of the options, try it. Do an internship or even volunteer work to see what it is like
- Remember to talk about your mentors, family members teachers and friends about your goals and dreams. Also, look at online communities that share advice and experience, like this one here.