I highly recommend the movie "Something Substance"

Although the movie itself is about anxiety about aging and appearance, I personally feel that this movie is also a reference for secondary trading. I will try not to spoil the plot:

First, the balance of "overweight degree x duration" = the balance of the degree of excitement and duration after the protagonist in the movie switches to a new identity.

Second, the two states of the protagonist in the movie are actually very similar to the two split mental states of people when they invest, proud of miracles/over-exertion and self-loathing, and their mutual self-perception.

When you are overweight and make huge profits, you will look down on your usual calm and steady state; and when you are usually calm and steady, you have a kind of reluctance to give up, yearning for, but disgusted with the possible side effects of the self in the state of making huge profits (but this side effect actually comes from yourself, but you just don't want to admit it).

These two states are actually yourself, but when you are in one of them, it is difficult to accept that they are actually one, which may actually be close to a mild schizophrenia.