Picked up a Heavenly Book

My name is Eryi, and Er is... Well, it doesn't matter! The important thing is that I was hit on the head by a book that fell from the sky, and then I cheated! After opening the cover, I learned [Reading], [Interpretation], [Summary], [Analysis]... Mom no longer has to worry about my learning. Turning the first page, I learned [Medical Animals], [Animal Conversation Technique], [Animal Mutation Technique]... Should I become a veterinarian, or buy a farm abroad? Turn to the back and take a look? Huh? [Improvisation], [Beautiful singing voice], [Perfect face]... Should I go into the entertainment industry? There are also [Healing Technique], [Resurrection Technique], [Divination Technique], [Prophecy Technique]... Should I become an old military doctor, or pretend to be a magician to cheat some money? What the hell are [Spider Silk Technique] and [Spider Walking Technique]? Force me to COS Spider-Man? Then if I learn [Construction Intelligence Technique] again, won't it force me to become Iron Man?