Need a little bit of help

I am having trouble deciding on becoming a nurse (oncology or surgeon) and a dental hygienist. I am taking pre reqs for both and am starting to run out of them so I really need to figure this out. Here is a little about myself:

1. I love helping people.
2. I do not like anything repetitive.
3. VERY family orientanted.
4. Would like to make more than $50,000 a year.
5. What to change the world.
6. Would like to have a big family.
7. My parents both have back problems (hunched over all day?)
8. School does not matter.
9. Would like to have fun but also serious at my job.
10. I love kids. (will be oncology for kids//dental for kids)


I seen this website and thought why not ask nurses? If you have any idea on helping me please do! My family and boyfriend of 3 years are not a big help at all. But I love them anyway .

Please give me input what do you think dental or nurse? and if you are in oncology or surgeon please give me pros and cons!