I cannot see anything but a yellow key i cannot get other than that its just darkness
and am i supposed to have a glitched white screen for a while before i start? i can only run shaders on minimum if that's causing something if someone helps me ill give alot of

When you try to run minimum shaders, do they actually work? You should be able to see a notable difference in how everything looks, such as seeing the sun reflect off of bricks.
If you cannot run minimum shaders correctly, then this gamemode will not work.