I cannot for the life of me find any daedric daggers. I don`t know if you have to be a certain level or what. (I`m lvl 31) But I cant find any of em. Can anyone tell me where to find one?

You have to visit the guy at the mythic dawn museum in dawnstar.

http://elderscrolls.wikia.com/wiki/Mehrunes%27_Razor_%28Skyrim%29

Ah, yeah, well I already have that. The daggers I`m talkin about are the ones you see in the loading screen of the dark elf in dark brotherhood armor. I don`t know how to post pics of an example though...

You'll barely find ebony gear at 31.
The easiest way to get them is to level smithing. Otherwise you'll have to rely on being lucky from chests and so on.

I never came across any daedric items. I crafted all of mine.

You can start finding daedric items in chest around level 50 or so; I've seen daedric weapons around that level. There are two other ways, though, you could smith it up, and supposedly, you can use the atronach forge thing in the university to make daedric weapons, though I've never tried it.