ab, you purchased the right books.
Nick is the man. Many well know lure makers of today purchase compontents from Nick.
Remember making lure is no 'cake batter'. By that, some things need proper aging. You just don't throw everything in a bowl and mix.
Understanding how lures, unine and glands work in the field is the next step.
Purchase 'Evaluation of Lures, Baits and Urines' by Charlie Dobbins
This book will give you a detailed look how lures do their job at sets.