Final answer:
The speaker channels their rage most productively through writing.
Step-by-step explanation:
The speaker channels their rage most productively through writing. Writing allows the speaker to express their emotions, thoughts, and frustrations in a creative and constructive manner. It serves as an outlet to channel their rage and process their feelings.
Through writing, the speaker can explore different perspectives, generate new ideas, and find healing and catharsis. It also gives them the opportunity to share their experiences and connect with others who may relate to their emotions.