I feel like I'm reading a train wreck everytime she concludes that the prince must reach the happy ending with the heroine so she doesn't get the execution ending. Has she forgotten exactly why game Selisena got executed? It's cause game Selisena poisoned/mu*dered the crown prince... of course the culprit is going to get executed. Don't poison him and you'll be just fine...

The others may stubbornly resist the fact simply because they are supposedly the villainess but in her current world, the Great Tree system itself is very game-like so it's understandable that she has a hard time not to think of it as an actual game.

It was only natural that Selesina was angry.

But, if Meria doesn't end up with Soratek, then it would lead to the bad ending......... and the only thing waiting for Selesina would be her death.

'But, if she does end up with Soratek, I wouldn't die...... but the country would be destroyed.'

In that case, I would also end up dying....... she realized. Should I choose my life or the life of the country?

If the 2 of them achieve the happy ending then Selesina would be exiled.

If the 2 reach the bad ending then Selesina would die.

If she had to choose one then she would rather choose the happy end so that she would only be exiled. That's why Selesina was hoping that Soratek and the Heroine would get together.

she knows she has the power to change fate thanks to her blessings pretty early on but doesn't use her brains to think that she can change her fate as well till the end. The prince didn't deserve the torture she put him through either. The 2nd ML (?) didn't make sense at all. Nor did her family's reactions make sense as the story progressed. If they loved her so much then how come everyone had no feelings towards the forced marriage except eldest brother?

Protag's power to change fate only comes up a handful of times and is a deus ex machina, only happening in bad situations where nothing else could be feasibly done, presenting two choices where one is obviously bad and the other good, then immediately resolving the problem once protag chooses the good option.

Protag occasionally establishes contact with the goddess who gave her power, and it's stated that the extent of being able to immediately and audibly communicate with her goddess is unusual. Despite the protag's angst, she never makes any attempt to foster this connection throughout the story until she's already up sh*t creek (not that it would've made a difference, she gets bailed out by the power anyway).

The "heroine" of the otome game plot ends up in a rivalry with the protag, leading to a typical switcheroo situation where the heroine starts to be the bad guy. Her bad actions are rooted in feelings of jealousy and inferiority, causing multiple situations where her fertility blessing is distorted, almost screwing up the protag's tree, giving birth to tree monsters that almost off a character, and causing the main conflict of the second half of the plot with the aftermath of the first incident by accident. After the incident with the plant monsters, this character falls off the face of the planet, and no resolution is given to her arc. No lessons learned, no follow-up "where are they now", nothing, though I suppose you could consider this realistic.

The "secret boss" character is introduced about a third of the way into the story. Protag remembers him as the secret boss of the otome game but he doesn't seem to be evil yet. He's then put on a bus, as he lives in the grand shrine that the protag doesn't go to often, and even when she does, she forgets to check on him multiple times. He comes back near the end where he's revealed to be the head priest's brother. He ends up not having a whole lot of characterization, and his powers go haywire at the very end for the protag to fix. He is a nothing character.

The entire plot revolves around the protag's fear of the otome game ending where she's either banished or killed, and she continues to worry despite multiple occasions where it's incredibly obvious that the plot has gone off the rails, yet the protag chooses to be dense and insist she's still in danger. This comes to a head when the head priest of the grand shrine pulls a d*ck move and tries to force an engagement with her. This is ignored until an evil tree sprouts thanks to the aftermath of the heroine's antics, and the head priest then uses the fact he can get rid of this nation-wide threat in exchange for the engagement. Protag has to just let it happen at this point, dissolving the engagement with the doting prince character who she kept fearing would leave her because otome game plot. Time goes on to the wedding, the "final boss" character's powers go haywire, protag taps into her fate power to stop the final boss, and then follows it up with her power again to choose to not go through with the engagement. This is treated as a whole "I will choose my own fate going forward" empowerment moment.

And then what?

This is actually where it ends. Immediately after said empowerment moment, right after fixing final boss guy's rampant power, right in the middle of a wedding ceremony. Absolutely no follow up. Don't get to see if protag goes back to the prince or not, don't get to see further development of the town, don't get to see what happens to heroine or final boss guy, nothing. Nothing.

even though she literally has the power to make everything go the way she wants it to

FL breaks her engagement with the prince in order to marry the grant priest in exchange for said priest getting rid of a poisonous tree that will kill everyone. She goes to the temple and literally gets ready to get married and then during the ceremony the demon lord is about to break out and it ends with the room being full of her light/power and her yelling out that she'll change her own fate.

Like please? You could've done this ages ago. You probably could've gotten rid of the tree in the first place. Additionally, what kind of ending is this? We don't even know if she gets married or not, if the grand priest was a villain or not, what happens to her future plans and what of the prince and the original heroine? Very disappointing ending here