Answer:
The perspective is personal and serious-minded; the purpose is to inform.
Step-by-step explanation:
From the beginning to the end of the excerpt, Armstrong talks about himself and his own experiences, and frequently uses first personal pronouns, which shows that the perspective is personal. It is serious-minded as well because he does not make any attempt to be humorous while talking about his problems and accomplishments. Regarding the purpose of it, the author clearly states it when he says “I’m not here to make polite conversation. I want to tell the truth” meaning that he wants to inform, communicate facts.