How can I make this into two sentences?

Note: Ending the first sentence in book.

Carl shows self-hatred also known as the death drive in the book when he says, "I hate my life. I want to die right now" (67).

Carl shows self-hatred when he says, "I hate my life. I want to die right now" (67). His statement reflects what is known as the death drive in the book.

Carl showes self-hatred. Also known as the death drive in the book when he says "I hate my life I want to die right now."

Thank you.

Mary is incorrect. She has created a sentence and a fragment.

To make this into two sentences, you can use the following:

In the book, Carl shows self-hatred, also known as the death drive. He expresses his feelings when he says, "I hate my life. I want to die right now" (67).