Ancient Kartia’s Labyrinth a WASTE

so a friend sell me a kartia pass for 32kk, told me it was great for XP and it was worth it, i went in and in the part where i have to protect the mobs i get killed by the tyrr warrior, so whats up? nothing i only got 2 chronicles and lost 3% exp at lvl 87? what is going on? the tyrr hit me 10 times and killed me when he was the only one left, and how about the crystal i hav eto protect? there was only one left. what a waste man...