Welcome to the site!
In regards to your questions.....here it goes: As a PCT/CNA, you are the eyes/ears of the nurse. Sometimes you will notice things that we nurses don't. Yes, you will be doing alot of hands on care, such as cleaning, feeding, etc. (I often try to do this, too, but don't always have the time/ability.) Yes, you can work while attending school. To be honet, it was the only way I got through the last 2 semesters of school, myself! Make sure you have enough time to study, though.
As for the degree...you can always get your Associates Degree first, and then go on for your BSN later.
'Cat'