Any recommendations guys?

For tragedy n psychology i like Harada manga, ogawa chise have some tragedy yaoi too~
Or Koiwazurai Shibito hmm
Few link for others tragedy
http://www.mangago.zone/read-manga/samenai_yume/

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


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

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

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

My favorites mangas http://www.mangago.zone/home/mangalist/72679
It has some dark/phychological/tragedy at the "bittersweet" and "bitter" section
hope you find something you like

Sakura Gari,,,, Saezuru Tori wa Habatakanai,,, Doushitemo Furetakunai,,,, Ten Count,,,,, Maiden Rose,,,,, my most favourites. Hope you'll like them~