Ms. Sue, as Writeacher is not there, I'd like you to check if everything is OK in this rephrase I need to prepare for tomorrow. (Use of tenses)

1) In Chapter ten Dr Jekyll comes to the realization of the primitive duality of man. He admits that man is not truly one but two. He is sure that if he can separate his two identities, he will be able to enjoy both lives without guilt or shame.
2) Well before his scientific discoveries, he had daydreamed (?) of separating the good and evil sides which are part of his personality.
3) For this reason, he uses a particular salt ... (you have checked this part).
4) First, he suffers horrible agonies: the most rackling pangs, a grinding in the bones, deadly nausea and a horror in the spirit. Once these agonies begin to subside, he comes to himself as if out of a great sickness. As he changes into Hyde, he experiences a sense of freedom in his increased wickedness.
5) He is physically smaller and younger because, up to that moment, his evil side has always been dominated by the good and is therefore much less exercised.
6) In spite of this, the mark of evil is clearly present on the face of Hyde.
The image of Hyde in the mirror doesn't disgust him though he is aware he has turned into a reckless, tenfold more wicked man.
7) In fact, he finds this image, his pure evil self, much more natural and acceptable than his previously divided self. The others feel him repugnant because, unlike them, Hyde is pure evil.

1) In Chapter ten, Dr. Jekyll realizes the primitive duality of man. He acknowledges that man is not completely one, but rather made up of two aspects. He firmly believes that if he can separate these two identities, he will be able to enjoy both lives without feeling guilty or ashamed.

2) Even before his scientific breakthroughs, Dr. Jekyll had daydreamed about isolating the good and evil sides of his personality.

3) For this reason, he decides to use a specific salt... (Please note that I am unable to check the specific part you mentioned).

4) Initially, Dr. Jekyll undergoes excruciating agonies: intense and tearing pains, aching in his bones, overwhelming nausea, and a deep sense of horror. Once these agonies start to subside, he regains consciousness as if recovering from a severe illness. As he transforms into Hyde, he experiences a sensation of freedom in his increased wickedness.

5) Both physically smaller and younger, Hyde represents the evil side of Dr. Jekyll that has been suppressed by his good side. Because of this, Hyde has not been regularly exercised and is therefore smaller in comparison.

6) Despite this, Hyde's face unmistakably displays the mark of evil. Interestingly, Dr. Jekyll is not repulsed by his reflection in the mirror, despite being fully aware that he has turned into a reckless and exponentially more wicked individual.

7) In fact, Dr. Jekyll finds this pure evil version of himself, embodied by Hyde, to be much more natural and acceptable compared to his previously divided self. Others perceive Hyde as repugnant because, unlike them, his nature is purely evil.