Answer:
The correct answer ir: hyperbole.
Step-by-step explanation:
The type of figurative language used in this excerpt is hyperbole. A hyperbole is a statement that is exagerated or not to be taken literally.
When the speaker says that the "world is nothing" he is refering to the meaningless of life, rather than the lack of materiality of the earth itself.
At the same time, when he expresses "only I exist" he is trying to convey how lonely and overwhelmed he feels in this chaotic and erratic world, and that everything else, to him, seem to be unimportant, merely forces that push him foward or backwards.