I'm currently in highschool and will be starting my senior year soon. I would like to learn as much as I can about this career so I've decided to join this forum and hopefully gain some insight from older, more experienced individuals. Thank you so much for taking the time to read this.
I was wondering what exactly I should pursue after graduating highschool. I've researched quite a bit and from my understanding the requirements to become a CRNA are as following.

1) BSN (4-5 years?)
2) Work experience- in an emergency setting ( 1-2 years?)
3) Registered Nurse (4 years?)
3) Anesthesia Course (1-2 years?)
4) CRNA Program to get a Masters (2-4 years)

Am I missing something, or have I added something that isn't required?

Also, is it possible to jump right into a BSN course as soon as I finish highschool? Some universities have a few undergrad course requirements before taking the BSE: Physics, Organic Chemistry or Bio Chemistry, Anatomy and Physiology, Health Assessment and Statistics. Should I take these courses before starting my RN and BSN programs?

Any type of feedback and advice will be greatly appreciated. Thank you so much for taking the time and effort to read all this!