MS, BS, AS...it doesnt matter. at any level, you will have to study hard, stay focused, and manage your time well. hard is really all subjective. if youre goodat math (like my wife ,who got a 100% on the portion of the HESI entrance exam) then pharmacology would be easier then to most. complete as many pre-reqs aspossible before the program so you could dedicate ALL your time on studying the bulk.
get a iPhone or iPod touch and download the book. apply for grants, scholarships, and financial assistance if you qualify so that you could suport yoruself. mywife was able to score a 32gb iPod touch with all the nursing apps, etc because she applied for a scholarship and received it. sacrifice. think about it, whenyou pass in a couple of years you have the potential to make six figures easily.
go to tutoring (if they offer it) even if you are doing well in the program. its extensive - but its up to you if you really want it.