Need CRNA info. for school

I am a Senior in High School Planning to become a CRNA. I am going to go to a Community College due to expenses a go through a 1+1 LBN program then the RNA program. Then continue my education at a four year university while working in the hospital. Am I choosing the right way to go?
Exactly how much schooling does it take to be a CRNA. If its so competitive why is it so high in demand? Need some answers!!!
Email me: Blondelov@aol.com Thanx