Assuming this is at the beginning of the play Act I he is feeling cheerful because he is heading to the ball to see Rosaline his love before Juliet
Yes I do but no not in that way but the answer you are looking for yes but also no
Figurative language is most common in poetry, but poetry does not always explore thought in a concise way, more often it tried to convey a feeling or an impression than treats the subject in detail.
Therefore I would choose a "novel" - it can use figurative language (unlike exploratory essay), but it also deals with ideas and thought is a profound, comprehensive way (but note that some poems will also do that!)
