You're totally fine. Or you will be soon. You've never concentrated so hard or used your power so much all at once. How you're doing isn't important though, because Zevvie, Kuviu, and Mariyam aren't fine at all. It's your fault. If you hadn't looped time so tight trying to get a different result, the ones who killed Zevvie probably would have left and Kuviu and Mariyam wouldn't be dead. You tried to loop them too, but some kind of weird static messed up your screen and broke your concentration.
You tried so hard to save one person that you ended up killing three. And now you're stuck here forever.