Opinions?

It’s come to the point where I have to choose an occupation. But I am still uncertain on what I want to do for the rest of my life. I know I want to work in the medical field if I can, to be specific I want to be a pediatric surgeon. But I don’t know if I’ll make it, or if the work will get to me. To be frank I’m also not sure if I’ll even get into medical school. I’ve thought about becoming a nurse but it’s just not what I’m passionate about, any thoughts?