Talking About Fun Magic, You Can Rub Nuclear Bombs with Your Hands?

I've traveled through time! Traveling to a world of Cthulhu where magic is paramount, he became a loser who couldn't hear the whispers of the ancient gods. Here, magic is truth, casting spells depends on going crazy, and the more you go crazy, the stronger you become. Seeing that my colleagues were either crazy or on the way to becoming crazy, I silently hugged the "Basic Alchemy" in my hand tightly. Others sacrificed their sanity in whispers in exchange for magic power, and I issued "acid bolt-action rifles" to the militiamen. While others are praising divine grace and squeezing all sentient beings in their territory, I have already achieved a "hybrid wheat" yield of 1,000 kilograms per mu... The "Parliament Thirteen", all members of which have zero SAN value, regard me as a heretic and vow to purify this unruly noble. Until the old gods came and thousands of magicians turned into blood mist in their frantic prayers, I looked at my assistant calmly: "Go and get Plan No. 137, The thing called 'Truth'!" The chief magician looked at the bloody clouds exploded in the sky, his lips trembling: "Wait... You call this alchemy?!" (Western fantasy + Cthulhu + steam + farming flow + no system)