I think I see where you're coming from now. It was a great question to ask.
I'm not quite sure how to help (I've got the opposite problem right now, my first draft is looking like it's going to end up around 220K words!). But just a few quick tips that may or may not hit the mark...
First, if you're actually writing the counsellor scene and finding that it touches on all four of those variations (State of Being etc.) I don't think that's a bad thing, or that you can't have more MC throughline stuff later. (Sometimes I think the PSR can repeat itself over the course of a signpost, like one scene as a "preview" with all four variations, then other scenes going through all the variations more slowly.)
Second, keep in mind that you may touch on MC Throughline stuff in scenes that aren't JUST about the MC's personal issues -- scenes that do double or triple duty, weaving stuff from multiple throughlines. e.g. maybe Sense of Self is something that Luke thinks about when he leaves home after Boone rescues him (assuming that's still in the first act/signpost). Or something he says at that point, whatever.
Third, it's great to use the PSR for ideas, but you can also feel free to just come up with your own ideas and figure out how they fit the PSR later.