Boys Next Door
The bottom self harm is that he literally wants to die and wants the main dude to kill him. Only has 3 chapters. Great read and it doesn't feel short at all.
The think that he want someone to kill him look like the Bl : pieta ( DAONG )
Spoiler : he want that someone kill him ( if I remember well he try to kill himself by self harm )
But tw : rape , gore , murder , etc
But still good ( In my opinion)
I have some Bl with self harm , but might not be similar to this one , though maybe one of them
Also for the depression thing I have a list with psychological stuff, and it have a lot of depression on it , so if you are interested I can share you these link + title
I love these kind of thing too
i lowkey love yaoi with sh / depression themes so does anynyan have any recommendations that are similar to this