What Do I Do

If you die don't get too worried about it. You can go to a retriever and have them retrieve your corpse. Retrieiving costs a bit of money, but it's definetely worth it to get your equipment back. However, when you die, mobs are allowed to take items from your corpse. So you can get your corpse back, but some items may be missing due to the mobs looting your corpse. If that happens, just go back to retrieve it.

Sometimes though you may not be able to retrieve. The retriever will send you a tell saying "Sorry, I cannot retrieve your corpse." This is due to the room you died in being !retrieve.

Another way to get your stuff back is to have one of the players retrieve your stuff for you. There are a fair amount of kind players out there who will be willing to help out. Especially if it was in a !retrieve room you might want to get a player to help. So, just ask for some help and you should receive it.