Name of depressing song?

The song was sung by a voice of a young woman/girl. She sang with a thick accent and an almost whisper-like voice. Because of this the lyrics were hard to understand but I think one line was "please stop killing me."

I say 'i think' cuz so far I haven't found it. The song was used to make at least one fnaf amv and an 'another'(anime) AMV as well. Although I think the 'another' AMV has been deleted a long time ago.

The girl also sang really slowly. To give extra emphasis on the depressing factor of the song.

Also I'm not sure if the song even is indie. The only reason I put that flair is cuz it seemed to fit with the limited information I had. Ty for reading.