Question about getting the achievement \"The Witcher on the Highway\"! (The Witcher 3: Wild Hunt)

Gentlemen, is there any way to get the achievement "The Witcher on the Highway" (pass the game on the "To the death!" difficulty level) without beating the game from the very beginning (I pass on the "pain and suffering!" difficulty level). For example, if before the finals you change the difficulty level to "Death!", or delete all your saves and load others where the game was played on the "Death!" difficulty? I don’t think that these two difficulty levels are fundamentally different, it would be a shame if I don’t get the achievement, the game is global, and replaying it because of one achievement, suicide. Subscribe, do not be lazy!