@almaa_card123, changing majors is going to depend on the college in question. @Gumbymom pointed out that the scenario you are asking about is not allowed at SDSU. You’d have to check each CSU to see if they allow transfers into their nursing programs. And yes, applying to an impacted major affects your odds of being accepted to a particular CSU.
Posted at same time as @Gumbymom, she has great info.