There really isn't a "minor" in nursing. Nursing is an academic "program" - rather than a traditional "major". That's why you really can't transfer between nursing programs
without starting all over. Sure, you can take some extra classes in psych in order to meet the qualification as a minor, but it doesn't count for much. Don't feel bad - nursing degrees always take longer than traditional ones. It usually takes ~3 years for an ADN & ~5 years for a BSN. In addition to the issue of taking all the pre-req's, some clinical classes may be offered only once a year. So, don't sweat it. No one is going to think less of you.
Eligibility for specialty certifications is based upon clinical experience and basic education (must have BSN for many). Grad school eligibility varies. Most clinical (NP, CNM, CCRN, etc.) AP programs generally require specific
types of clinical experience & stellar undergrad GPA. Your extra undergrad electives won't make a difference.