Mutagenic Medieval

In the year 1121, during the Dark Ages, mutants were not just myths or stories; they were as real as the plague. But the protagonist of this story didn’t know that… Learned his powers when he was 10 years old. Dubbed a genius by 12 years old. Dropped out of high school by 14 years old. Parents died in a car crash by 15 years old. Escaped a mutant-hating organization by 16 years old. Drifted around for four years until finally caught by mad scientists in his 20s. Life went on: was experimented on, sent to missions, was studied under a microscope, and finally got thrown into a wormhole by 25. It was one crazy origin story. Author's words, "Basically a medieval fantasy but with mutants, instead of magic and swords. MC's power is 'Self-mastery', with minor creative psychic powers that allow self-hypnosis, danger sense, hyper-awareness, and limited power-tinkering (can only make powers for himself and must adhere to certain scientific logic)."