Enrolling in a BSc course will not help. If you opt for Zoology, you can learn taxonomy but miss out on Botany the same way a Physics or Chemistry course also cannot help as it is more of a theoretical subject than a problem solving competitive type.
If you are keen on a Medical course, repeat the preparation and attempt it again 70% of my students who have enrolled for a UG Engg or Arts course could not cope up. They carry on with the Degree course with an unfulfilled dream.
As the questions are easy after NTA took over, serious and involved preparation of 3–4 months would suffice to crack NEET. But you have to spend 6 hours every day in learning and practice.NCERT books are enough for cracking NEET. Complete the syllabus thrice and revise 5–10 times, you are sure to succeed.
Happy Learning!
An investment in knowledge pays the best interest.
Benjamin Franklin