I Reconcile Yin and Yang in the World of Tricks

Grandpa died, leaving me only a broken talking book, which said that I was the body of chaos and evil that saved the world, and that I could cultivate both Yin and Yang forces at the same time. I believe him, this bad old man is very bad. No, your book is really a ghost! The book said: I will help you suppress the tricks of other ghosts, and I will also provide you with your master's research information. But it only wants my blood from the beginning to the end! Grandpa also said: Light crystal is delicious. Then I really ate it. Damn it, this Yang energy is so strong, I feel my body is hot after eating. Well, don't come over here. There is a ball of fire in my body now, and the energy is a bit huge, so big that it's about to explode! What, can I still heal others if I explode? Then if I can hold my nerve, I can become a bomb?