Has your W ever done individual IC before herself? I don't remember that from your threads, so if you mentioned it, sorry. I know I was terrified of going by myself, and really had to force myself to get started, and had family and friends on standby to get me there if I felt I couldn't do it myself.
Perhaps offering to go with her and sit in the waiting room, maybe go out afterwards for something she likes (special dinner, dancing, what ever) might help. I wouldn't offer the special thing before hand, but do it afterwards as a fun way to recover from the first IC session. I only made it in by myself because of the fear and panic of losing my wife and family. I had tried to go before several times over the years and failed to pull the trigger on going.
Just a thought about the IC.
Beyond that, stay strong and patient. Smooth road and all that. It seems like progress is being made. That's not nothing!
Me: Mid 40s W : Early 40s M:11 T:13 S, D, both 7-10 BD : 11/2017 Separation : 1/18