Hello aspirant,

Get yourself two Organic Chemistry notebooks. Use one for mechanisms and the other for named reactions. It is usually preferable to work in the same order as the NCERT textbook. Start with Class 11's two Organic Chemistry chapters, i.e. Some fundamental principles and techniques in organic chemistry and Hydrocarbons.

For the base,

Make sure you understand the IUPAC nomenclature. Learn the names of the roots and preference for functional groups, different functional groups' prefixes and suffixes

Experiment with various scenarios. Begin with basic chemicals and progress to more complex structures as your confidence grows.

Try to match names to structures and vice versa.

Learn about several sorts of representations, such as the Bond line formula. Be clear with the concept of electrophiles and nucleophiles. Be well versed with all the name reactions and NCERT internal examples.

Though NCERT IS ENOUGH, you can also refer to the following books to strengthen your concepts- https://medicine.careers360.com/articles/neet-preparation-tips

Hope it helps!