Sorry you're having such a rough time accomplishing your goal. However please keep in mind that NCLEX is based on minimum
requirements so it will never be "leveled" (Dip vs. AD vs BN vs MS) until there are changes in our entry into practice that have different licensing processes & requirements for each level.
National accreditation rules have established the baseline educational requirements for nursing programs
but each school has the ability to layer on additional requirements that reflect the mission and values of that organization. For instance, if you attend a faith-based program, I can guarantee you'll have to have more ethics and religion credits. If you go to a school that is very 'science & research' oriented, you are probably going to encounter more math, science & research courses. This isn't just with nursing... my poor daughter had to have 6 hours of college math to get her BFA because that was the minimum math requirement for that university, no matter what major. (she survived, but barely).
The 'level' of course is a big deal. There is definite difference between 200
courses - 500
and up are graduate level. You may also find that some classes 'expire' after a while, particularly science classes because either 1) they have discovered that students who took it more than X yrs ago don't remember the basics or 2) there are continuous new developments in the field.
Bottom line - academia is not a democracy. The only pathway to success is just to jump through the hoops when they tell you to do so. We've all been there. Don't set your hoops on fire.