Planning and setup in Adobe After Effects CC software

Please provide me instructions and pointers about After Effects CC? Before we begin in a project what are storyboards and scripts? What are the best pointer in planning my project? What are the best ways in acquiring and choosing for the best footage? What will be the best thing to know about pixel, aspect ratio and frame aspect ratio? What will be the best way for me to avoid long work and best way to maximize the capability of Adobe After Effects CC? Provide me additional information about how useful it is in implementing this features in my projects? Thank you very much and have a nice day!
