Okay, knowing what we know now, here's what I've got in mind. This is largely the same as Triage 1.0, but I've iterated somewhat on the options and tightened it up a little.
[X] Plan: Triage after Calamity, Mark 2
-[X] [TLatS] You ran down the one responsible, suppressed her and sealed her away within your {Locus}, since actually slaying her seemed beyond the abilities of anyone you know--what with the whole 'Regenerating from a torn off head' thing she had going on. You've determined by now that she was operating under heavy mental influence--you're not certain yet if it was Flow, Oath, or something you've not heard of before, but in the process of sealing her, you've cut her off from the source of the effect, and the power you used to restore your Father to health appears to be working on correcting the damage. Blaming a victim for being subject to an attack is not something you want to get into the habit of doing--that isn't justice but just wild vengeance. Make use of {Affective Radiance} as required to help grease the wheels as you provide this story. If you can get Martin into confidence, go into more detail--she was possessed by some kind of evil Spirit that lunged out when you got the advantage on her, and severed her link to it with one of your less understood abilities.
-[X] [CaT] Harm Reduction should be the order of the day. Using this power to get 'Whatever you Want' is a good way to find yourself separated more than you're comfortable with from people--something that's not a good look, since even Aurora seems to make it a point to feel all the bad stuff even if she can't do anything about it. Using it instead to appeal to the better nature of others? To save innocents who are victims of circumstance rather than wickedness? To aid those who are lashing out from nobody reaching out a hand? To grant strength to those who would otherwise allow their leaders to drag them into atrocity, be it out of fear or misguided loyalty? That's how this should be used, not to bend others to your will.
-[X] [WaL] No, Evie should turn off Hybrid Siphon and Rest. In fact, there must be something you can do to help her recover--you refuse to believe she's entirely disconnected from everything when she's still connected to you. Consult with Petal, make use of your Relations Links as the two of you work out a solution to help stabilize your weird jellyfish-kite friend. {Hope-Shock} seems like it might have some effect when those links are made, and while you still don't know how {Thread Compression} works as well as some of your other base powers it still helps make you better, maybe it'll help stabilize her own wounds? You still have work to do in the real world, so once you can feel something having an effect, you can leave the monitoring to Petal while you see what you can do for your family. Remember you have {Meta-Ethotic Control}, maybe see if that can help you gain insight on how to maximize Evie's chances along with {Tremendous Mechanist}?
-[X] [TowCA] Leave the door closed, for now.
-[X] [TNA] Valerie called me 'Bloomling', like it meant something. The hillock out west, the secret of my name. I have already put it off too long.
-[X] [TNA] Captain Martin had something he wanted me to do that he felt was important even after discovering the truth about me. I should follow up on that.
-[X] [TMo] I decided I would take a risk with the Madam. It didn't feel right to turn her away.
--[X] You might have just gotten swiped by one of those looming dangers that she seemed to be scared about. Even if she's not exceptional, she still knows more about Concordance than you do--and another set of eyes looking forward might catch something you missed. She knows enough to destroy you and she hasn't yet--and frankly, you've heard of far worse motivations than self-preservation for taking a chance.
-[X] [MnM] Myah's witnessed a lot of crazy nonsense, but if she still wants to be with you after you bring her up to date on the... Everything... You could use a friend more than anything else--if someone asks, you can just call her your assistant, but... Yeah.
-[X] [MRL] Soul Link Evie.
-[X] [AC] FAMILY TRIAGE: {Rest State} Is apparently effective against Valerie in the long run, but she's the source of the fuckery. Maybe see if {Rest State} combined with the {Hope-Shock} is enough to jar the Command loose before you do anything more experimental? Observe to see if you can identify how Valerie did it with your current suite of sensors. If you can identify the anchor of the effect, can you sever it like you did the evil spirit? Hopefully without hurting them? Keep talking while you're going on, as long as you can be assured there's no eavesdroppers around anyway--they kind of saw everything by this point, and... Uh, yeah. Additionally, maybe you can see if {Ply The Line} could be of any help nudging the odds of a successful treatment? If we still haven't found a solution by the time the Watch gets in, maybe see if that Yola lady can help if you can link with her?
-[X] [AC] Experiment with the possibility of using the Dreamspace as a meeting place with your allies, an absolutely secure place to communicate is priceless
-[X] [AC] Going to Kaymie at this point is reckless, not when we needed Evie's help to avoid... Something awful the last time we tried to trace back something related to Senus, but once we have settled things here, and familiarized ourselves with our new Ethos... Well, a lot can change before then.
-[X] [AC] As sad as it seems, we are part of the problem with Zach. We can't fix this directly... But between all of our other skills, we... might be able to nudge things a bit. When our Weight allows for it, interrogate [The Ladder] regarding a route to help address his concerns, ideally without needing to break anyone's will. You've literally just gotten feel good mind powers, there has to be some way you can slightly nudge things to help him be in a better position to cope when the Ethos comes in, because you just had to deal with one child turned into a monster by eldritch powers beyond your ken and she didn't need to die either. If you can't match that with Zach--then what was the point of all of this? Maybe see if we can help get mom involved to nudge dad? Would that hide our hand in it?
-[X] [AC] Mom is a frightfully high level Flow user, just ask her if she has any insight on how it works when you can.
-[X] [AC] Slowly dial down on your use of {Affective Radiance} on yourself as you feel more capable of coping with the... Stuffness that had happened. When you have a moment to breathe, just let yourself process everything that's gone on--as bad as it feels, it'll just get worse if you keep it hammered down forever, and you don't want to be someone who completely loses touch with their origin.