Please please manga about suicide/sh/severe depression No fantasy or supernatural setting ...

Will BL do ?

You're always asking for something depressing... My favorite is
https://www.mangago.zone/read-manga/oyasumi_punpun/

Incidentally Living Together
It has smut tho and its neither a seinen or josei
It matches the other desc doe

https://www.mangago.zone/read-manga/my_broken_mariko/

Already read it, it's absolutely shit and it doesn't fit half of the description I asked lol

Already read it, absolute masterpiece, you get the vibes tho

Not really, already read everything and I'm looking for seinen or josei, something more mature and serious

Already read it lol

Damn my bad dawg

Dw, I'm just very particular with my wants

Naw i gotchu
I personally didn't like it either lmao
it was weirdly written with an odd pace.
and tbh i personally dont like shit with heavy subjects.

I really like heavy themes, it's just that this manhwa was terrible