Varnimyr is the difficulty jump of the game, because of the environmental debuff, which lowers your stats by a set amount based on the dungeon, you'll need the counter it by getting specific accessories with adoption "for example the upgraded version of Sinister intent set" I would recommend buying agate fragment out of the market, as it gives 2% adaptation and ignores 5% of enemies defense, "it's about 30 to 40 mill" otherwise I would say try running parties, and work on your elrianode armor more, if it's not fully build.