"The Road Less Traveled" by Robert Frost
What you thought: This is a poem about individuality, making unusual choices, and having the courage to be different. That's why when everybody else went to Miami for spring break, I went to Pensacola. Because I forge my own path.
But actually: Frost is gently making fun of people who think that a single small decision will make a huge difference down the line. That's why he tells the last line "with a sigh:" the truth is that the choice he made in the woods didn't actually affect much. He even says in the poem that both paths are worn "about the same." In fact, Frost wrote in a letter once that, when writing the poem, he was thinking about a indecisive friend "who, whichever road he went, would be sorry he didn't go the other. He was hard on himself that way." Turns out both paths are...pretty much fine.