If it's what you want to do,,by all means DO IT!!!
Yeah,,,science classes can suck,,,,BUT dont let that stop you from being a nurse.
We all have doubts about our abilities when deciding on a career or making a career change. It all comes down to discipline!
If you study everyday, do it with enthusiasum and energy,,you will do fine.
As for changing majors from HR to nursing,,,try it for a semester and see what happens. You can always switch back to HR if you want.
I think the hardest thing about Nursing school..isnt so much the difficulty of the classes,,,,but rather,,,,that little voice in your head
"OMG what am i doing?? Am i gonna like nursing??? Will I be able to handle taking care of sick people!! Will I be able to handle it emotionally dealing with the sick everyday!"
Just deciding on nursing as a major is tough!!!
Self-doubt is one of humanities biggest enemies, it tells us we are not smart enuff, not good enuff and on and on. Don't fall into the trap of negative thinking.