I would say that the first stanza reveals the theme that romantic notions shape one's youth.
The narrator is saying how what he felt in his youth shaped his young life - he is saying that romance "taught me my alphabet to say," meaning that it helped him learn about life. In the next stanza, he is trying to say that when we are older, we often remember these moments with fondness.
for one, you have not listed any topic to give me the ability to answer this question add quietly, however, I have to say no topic is quite to bread for an essay but it really depends on what you want to write about. I can help you out a lot if you just post the topics I have gotten A's and B's on all the essays I have ever done. I am a very passionate writer and I have been told by professionals aka writing and English teachers that I am gifted when it comes to writing I also passed my English one ECO for the year and I had to write an essay for that.