It wasn’t the obit part that bothered me. The teacher required that the obit be CURRENT (if you are 12, the obit is for you dying at around 12). They could not write an obit for yourself at 98 or something.
Seemed a bit gruesome. The OCD part came into play because she obsessed about writing her own obit for present time, and it being a self-fulfilling prophecy.
Ah, yes, that is gruesome—and I can see it taking her down an unpleasant path as well.