@diplomacy while I can agree that X probably feels pretty bad hiding things from girls, I disagree with your characterization of X. She understood the importance of the Project - otherwise, she would simply sabotage her work and not risk her employees. She would agree with Hokma that the way things are going is not bad at all. And I do not think that Binah would have believed in a blind drone so much that she began to consider the coming war with the Head as a not hopeless undertaking. And although empathy helped in dealing with Sephirah, the key was always not kindness at all, but understanding.
And in general, fundamentally, both X and Ayin are the same person - only their experience differs. X is the culmination of many iterations of her own over thousands of years - and while she had to start over with no memory each time, we know there was actually continuity between her iterations. Due to her experience, X has strong empathy and is more determined. Unlike Ain, who could not find the strength to change anything before the appearance of Carmen, X has the will to move on her own. She willingly takes part in the Plan, even if she hated what was happening, even if she had to die in the end.
But that's an important part of her guilt, isn't it? She didn't just follow the instructions, she made the decision to follow the Plan herself, hoping that the result would be worth all the sacrifices. And while others suffered, she remained on the sidelines, safe in her position as Manager. That is why she is now so careless about her own injuries and so eager to protect her children from threats. And there's probably a part of X that thinks she doesn't deserve good things - for example, she has no doubt that she'll go to Hell if she dies for real. She wants to pursue goals and dreams, to create connections that will be hers only this time - but she can't let go of the thought that it will only ruin everything. And since she realized that the Abnormals followed her to Earth, she actually got confirmation of this.
I'm in a hurry, sorry if this is a bit rambling, but I hope I was able to get my point across.