Have you read 'Kill the villainess' yet?
I don't want to spoil you, but that story might satisfied you lol
Help, this sounds so funny xD
Also i think the story just doesn't handle their suicidal tendencies well and their improvement, thus why you didn't like the stories.
Try 'The broken ring:this marriage will fail anyways', i feel like that handles the trauma of the fl well and the romance kinda is handled well too.
And as the other comment said 'Kill the villainess' matches your description but not entirely too
'I'm a villainess, can i die' also has suicidal fl who doesn't immediately get better, although it's still ongoing
sometimes i feel so angry when the suicidal female lead isnt suicidal anymore because the ''love'' of her life saved her No bro i want her to commit it. just do the deed already and say bye to your life i want to see everyone groveling and missing her forever