Answer:
The poem "Sonnet Written on My Birthday" by Thomas Oldham is a type of poem called a sonnet. Sonnets have a specific structure, and this poem follows that structure. It has 14 lines and a specific rhyme pattern. In this case, the rhyme pattern goes like this: ABABCDCDEFEFGG.
The way the poem is set up helps convey its meaning. The poem talks about the passing of time and the poet's thoughts about his life. The first part of the poem (the first eight lines) talks about the past and the different experiences the poet has had. The second part (the last six lines) is more about the poet's determination and hope for the future.
The poem's tone, or the feeling it gives, changes as it goes on. At first, it's reflective and a bit sad as the poet thinks about the years that have gone by. But as the poem goes on, it becomes more positive and determined. The poet decides not to be sad and to stay strong and hopeful, choosing to follow a good path.
In simple terms, the poem's structure and the way it's written help show how the poet thinks about his life and how he decides to stay positive and hopeful even as time goes by.