I feel like I’m going to have to start all over to find a soap dough recipe. Maybe I can look up one of the good ones online and see if I can compare it to mine.If I'm pretending to be wise, the best platitude I've got is, "Don't fix what's not broken."
Substitute water for the FO/EO amount, and if your recipe usually makes good soap dough with the additives, don't remove the additives. Also, different colorants (even among Mica) do make harder or softer dough, so be prepared to add more water or oil to charcoal, TD, clay, and finely ground Micas, just as you would have to do to pre-disperse them and keep the trace slow.
As with all recipe changes, I'd recommend a small batch of soap dough to start with, to make sure that the water instead of FO still works as dough.
I’ve got such a huge useless mess to clean up.