set your own difficulty, no matter what the difficulty of the world or that of other players, you can play according to your level as you wish.
use the command "/difficulty_"
replace "_" by :
0 = easy (-20% incoming damage, but less drop)
1 = normal (nothing changes, default when you join the world)
2 = hard (+10% incoming damage, but +15% double drop)
3 = hell (+20% incoming damage, but +25% double drop)
4 = nightmare (+30% incoming damage, but 100% double drop, .... death can be painful)
these changes only affect you (even in multiplayer).

