Any yaoi mangas where the uke (or seme) attempts suicide? I'm in the mood for angst rn~

http://www.mangago.zone/read-manga/tenshi_no_uta_nishida_higashi/


this, bonus.
http://www.mangago.zone/read-manga/senya_ichiya_shitone_no_himegoto/
http://www.mangago.zone/read-manga/nanadome_no_gomenne/
http://www.mangago.zone/read-manga/hanaya_no_nikai_de/

I'm sorry, I can only recommend Running On Empty and Cut. These 2 are popular and I have the feeling you might have read them.
P.s. If you haven't tried Sora o Daite Oyasumi, please try. even though we will never know the ending, it's a masterpiece in the angst genre.

http://www.mangago.zone/read-manga/loved_circus/
http://www.mangago.zone/read-manga/kosha_ura_no_natsu/
http://www.mangago.zone/read-manga/sakura_gari/
http://www.mangago.zone/read-manga/michiru_heya/
http://www.mangago.zone/read-manga/sora_o_daite_oyasumi/
http://www.mangago.zone/read-manga/bannin/ - Ch.3
http://www.mangago.zone/read-manga/sanzen_sekai_no_karasu_wo_koroshi/ - Planed to commit suicide but eventually turns to be Vampire!
http://www.mangago.zone/read-manga/yomigaeru_kiro/
http://www.mangago.zone/read-manga/bousou_kareshi/an/bousou-kareshi-chapter-2.html/1/
http://www.mangago.zone/read-manga/everyday_smile/

Towards the very end: http://www.mangago.zone/read-manga/j_no_subete/
Very, VERY good manga by the way, and lots of angst, just like you're looking for. I highly recommend it.