I understand that it can be quite difficult to decide on a career especially at such a young age, given the lack of experience with what we want to pursue. For starters, I would recommend that you take some personality tests, such as the Big Five Personality test, or the Myers–Briggs Type Indicator test, both of which can be done online for free, and can offer some insight into your strengths and interests. However, don't rely too much on these as these are just to get a basic idea of your interests. This might help you see some common personality characteristics which you may have not taken into account before, and can help you with deciding between some of the careers that you have mentioned. Another thing you can do is inform yourself about what it is like to work within each of these career options and see what you like and do not like about them. If you are looking towards university, you can browse the course contents of some undergraduate degrees related to your interests, and compare characteristics. This is a great way to decide upon what to study as you can see what you would specifically learn for each degree, and see if that works for you. On a more general approach, you can also ask yourself these questions:
1. What are my interests?
2. What are my skills?
3. What are my talents and strengths?
4. What is my personality?
5. What are my values?
6. What education or training do I need?
7. Are there jobs available in this career?
8. How much money do I want to make?
9. Where do I want to live?
10. Why do I want to pursue this career?
I hope that this helped a bit!
Here are some resources which I mentioned, which you can check out:
Big Five Personality Test: https://www.truity.com/test/big-five-personality-test
Myers–Briggs Type Indicator: https://www.16personalities.com/free-personality-test
A general guide: https://hospitalityinsights.ehl.edu/questions-choosing-career
I graduated last year and now work in family medicine as a PA, so becoming a PA is definitely one of the options you could add to your choices. Here's a list of steps to become a PA: https://www.aapa.org/career-central/become-a-pa/
Personally, I believe that enjoyment and passion should be one of the top priorities when you think about future career possibilities. So I would encourage you to think about your passions and interests, and why each of the career choices you're considering are appealing to you. Then, if you're in school, find a career counsellor or coach to help you find out more about your strengths and interests, and let them guide and help you make some decisions about where to go from there. Let me know if you have any specific questions about the PA profession or PA school that I can answer for you.
I was in this same predicament. I went to college planning to be pre-medicine and started taking the requisite classes. i realized that i wasn't passionate about most of my classes. A number of my elective classes were around society & justice and I took a pre-law class that I really enjoyed. I ended up pivoting to pre-law and went to law school.
So my advice is to get some exposure to both career paths and see what actually interests you and you're passionate/good at.