Spoilers for Frankenstein! If you want to read it and you haven't, DON'T READ THE FOLLOWING ESSAY. Y'know, unless you like plot details being ruined for you...
OK. This is a RESPONSE for Frankenstein chapters 5-13. I know there's no definite structure, but that isn't required. :)
Prepare to behold my inner therapist at work!
When Frankenstein's creature comes to life, we see an immediate attitude change. Frankenstein realizes the enormity of what he did and, simply put, freaks out. This is probably because he was only thinking about fame instead of the consequences of his actions. The moment he saw the monster move, he even said, "How can I describe my emotions at this catastrophe, or how delineate the wretch whom with such infinite pains and care I had endeavored to form?"
It's also interesting how Frankenstein meant for his creation to be beautiful, but when it comes to life, Frankenstein realizes it's everything but. This could be a reflection of what Frankenstein did to do this. He left his family for school, but he hardly ever made contact with them. In those two years he was putting the body together, he didn't get any rest and his health was diminishing. What he meant for good turned into something ugly, internally within himself and externally in his monster. So essentially, Frankenstein's monster was a representation of Frankenstein himself.
He starts to be redeemed when his old friend comes to help him because it's a bit of his old life coming back that he very gladly welcomes. But his paranoia is more than obvious, and his friend takes note of that. Frankenstein is terrified of Clerval finding out what Frankenstein has done. You could say that, if the monster represents what his creator has done, Frankenstein doesn't want Clerval to see that "ugly" side of himself: the side that drove him to the thought that he could play God.
When Frankenstein learns that William was murdered and goes home, he sees, "…a figure which stole from behind a clump of trees near me; I stood fixed, gazing intently; I could not be mistaken." He concludes that the figure is, indeed, his monster. It's ironic that he all but abandoned his family to create the monster, and now the monster has murdered Frankenstein's brother (again, a reflection of Frankenstein's mistake). What's even better (for the sake of irony) is how Justine was condemned for what the monster did, just like Frankenstein puts the blame on others, although he is taking some of it for himself.
You can see his attitude changing after Justine dies because he calls himself the murderer, albeit indirectly. He deeply regrets what he's done and now hates the very thing he used to love (at least before it came to life). When he comes across the monster, there are some definite similarities between the two. For one, they are both deeply unhappy and in dire need of some kind of happiness. For two, they both started with good intentions, but turned into fiends. For three, they blame the other for what happened. But unlike Frankenstein, the monster recognizes that life is not something to toy with: "How dare you sport thus with life?" That is what separates the monster from Frankenstein.
When the monster is telling his story about what he had been doing, parts of it corresponded with what had happened to Frankenstein, the most significant, in my opinion, being in reverse. While Clerval was taking care of Frankenstein, the monster was taking care of the family. Also, at first, Frankenstein and his monster were mainly looking out for themselves, but then something happened that made them think of others. In the monster's case, it was discovering that the family was living in poverty. In Frankenstein's case, it was William's death.
At one point in Frankenstein's story, he says, "I heard of the discovery of the American hemisphere, and wept with Safie over the hapless fate of its original inhabitants." It's no wonder he empathized with the Native Americans; the same thing happened to him. He was brought to life only to be rejected by the rest of the world and driven into seclusion. He later says, "Was I then a monster, a blot upon the earth, from which all men fled, and whom all men disowned?"
That comment circled back to the moment Frankenstein brought the creature to life and how he ran away from him and, when they met again, he vehemently expressed his hatred for his own creation.
About 2.25 pages long. :)
Thanks to alexis grey way back at chapter one!
Have your candy of choice.