@Ruchi Tripathi If you're looking for similar manhuas like TGCF here are the ones I'd recommend (most of these are transmigration manhuas)

Erha (Dumb Husky and His White Cat Shizun)
It's about a villian who transmigrates to the past when he used to be a disciple and he has a second chance to make things right. Through reliving his life, he realises things weren't as they seemed with his Shizun and his feelings towards him begins to change.

SVSSS (Scum Villains Self-Saving System) 
It's about a novel reader who basically transmigrated to the novel he hated, there he woke up as the villain of the story and tries to change to prevent himself from being killed by the MC in the future without breaking character. Trying to change, his disciple, the MC, slowly falls in love with him. (not so sure if this has a manhua but it has a novel and a donghua you can watch) 

MDZS (Grandmaster of Demonic Cultivation) 
It's about a cultivator killed for following the demonic cultivation path. A decade after his death, a homosexual cultivator trades his own life to bring him back from the dead and exact revenge his family. Thrust into the world in the body of a gay lunatic, he faces the aftereffects of his previous life.

There's much more I'd recommend but I only know similar NOVELS not MANHUAS.

@Han may I know the source of the suicide thing?? is it like an extra chapter or??