I suck at LGs and found the games to be more difficult than normal, got 3/4 games, didn't have enough time to finish the last one. Found the LR and RC to be average.
Not exactly advice, but I'd say postpone it unless you urgently need a score. Doesn't sound like you've hit you potential at all, and taking another 10 PTs will do wonders for the anxiety. Especially with the newer PTs since they are a bit different…
I didn't read anything about industrialization. In line 43, it says Gilman used fiction to urge women to further social evolution, and if she used it, surely it must mean that she valued it as an instrument of social progress.