I actually have an update on this! Today I finished my first class to 500k! And it's the worst one!
Compared to Fisher, I genuinely feel I am on the homestretch now even though I have 10 classes to go, Fisher is just miserable, there is so much RNG in those missions, and a single mission can take upwards to 10 minutes, all while chugging Cordials off CD like they are raid buffs, it just turns into a miserable experience when the name of the game is consistency and repetition... but it is done now, which means it is smooth sailing from now on!
Minorly, Fisher was frustrating enough that I decided to go for 500k right away, just so I wouldn't have to deal with it much more, get it all out of the way now.
Either way, I am very confident I can commit to finishing this now, the worst is behind me.