So there's a poll that crossed my dash (https://www.tumblr.com/lansplaining/739863989923856384/in-a-time-travel-situation-to-save-himself-jgy if you're curious) about what JGY would do if he traveled back in time. There's lots of incredible but totally dissenting ideas in the notes, and now I really want your perspective. JGY dies in Guanyin Temple and wakes up in the past: what's his game plan?
oh man this is an interesting question! and so much of it is "it depends", particularly on "where in the past does he end up."
I think the first answer is actually to a certain extent "freeze and despair" because the thing is that from Jin Guangyao's perspective, he's never had a whole lot of options. His mistakes - or at least, the things that got him in trouble - look like, if not inevitabilities, a question of "what could I have done that would've been better?", at least at (his own) first impression. I think a lot of the time he makes the choices he makes because he feels cornered into them. He kills Nie Mingjue because otherwise he will die. Whether he was directly responsible for Rusong's death or not (I tend to think not, but I also think the text is deliberately ambiguous), it's a matter of preserving what little reputation he has (and MDZS tells us, repeatedly, that reputation can be the difference between life and death). The incest is thoroughly accidental and, once it's done, fairly inescapable without severely damaging both his own reputation (not an insignificant matter) and that of Qin Su, who he cares for deeply; once he knows he does what he can by ceasing to be intimate with Qin Su.
The only thing that I think is definitely not about feeling cornered is Jin Guangshan's death, which is far more personal; but there is also the consideration that if he doesn't kill Jin Guangshan he is quite probably going to be pushed out, one way or another. I don't remember if it's explicit or not, but Jin Guangshan's bringing in of Mo Xuanyu isn't not a threat that Jin Guangyao is replaceable.
So I think Jin Guangyao, back in time, looks at his options and thinks what am I supposed to do that won't end in disaster, when part of what doomed me was what I am (my mother's son), in and of itself.
He can try to stay in Nie Mingjue's good graces, but that means submitting himself to abuse from Nie subordinates and accepting his "place" with the Nie, which he doesn't want. If he never works as a spymaster for Wen Ruohan, then he never has the means to gain status, and if he works as spymaster for Wen Ruohan then he gains Nie Mingjue's suspicion if not enmity, which is likely to spiral rapidly both because of Nie Mingjue's inevitable deterioration and their drastic differences in perspective in general. If Jin Guangyao ends up with the Jin, he ends up having to do the same things that make Nie Mingjue so angry with him on behalf of his father, because it's not like he can say no. If he kills his father, he might have a chance, but he's also then committed a crime that if anyone discovers it will earn him universal approbation and has to live in fear of that for the rest of his life, intensified by his previous experiences/trauma from the former timeline. If he tries to make sure Nie Mingjue dies in the war, that's risky in itself, because if he is implicated even slightly in it he's also doomed.
Then, if he's only traveled back in time to when he's already joined the Jin after the Sunshot Campaign, it's even worse: he's already in a bad position with Nie Mingjue, who is going to become a (at least potential) threat to his life, but killing Nie Mingjue triggers Nie Huaisang's revenge. Killing Nie Huaisang is maybe an option but he would have to get away with it and that's intensely risky, and not something I know that he necessarily wants to do.
(I think he would kind of like to kill Nie Huaisang. I think he is very angry with Nie Huaisang. Definitely not going to be getting close to him at all, and I think would cut him off from any personal connection as politely as possible. Imagine how Nie Huaisang would feel about this with no understanding as to why, it's fun.)
If he doesn't do anything - leaves Jin Guangshan alive, leaves Nie Mingjue alive, leaves Nie Huaisang alive - he might be able to get through it alive. But from his perspective (at least) I think there's decent odds that Nie Mingjue would kill him, or at least a significant risk of it - if nothing else, because Nie Mingjue is going to lose control eventually and Jin Guangyao is a frequent target of his anger even when he is under control. And even if that doesn't happen, again, there's likelihood that he will have to live under his father's oppressive thumb for a long time, knowing that he's, not even hated, but just worthless to him. Knowing that his mother was worthless to him, and feeling, I think, that by being filial to his father he's betraying her. If Jin Guangshan doesn't just kick him out of the sect with nowhere to go.
I do think that while there's a part of Jin Guangyao that could, maybe, accept a low status as a means to survive (and I don't know that he would have anything but a low status in any other sect but the Jin; even his killing of Wen Ruohan doesn't earn him general respect), I think he would be miserable, and always resent it. I think that would feed into the despair, too: that this is his fate, that all his struggle and striving was for nothing and this is all he can do if he wants to live. That there was never any place for him in the world.
and taken all together this is why time travel fix-its where things are different because "Jin Guangyao just [whatever]" kind of drive me a little nuts, both from a logical and a character perspective. I'm not saying it's impossible. just that it's very difficult, and there's not a lot of pathways to happiness for my boy on his own without help - and where is he going to get help? just like the first time around, he's on his own.