@testtoast99, welcome to Fluther. It would help if you would specify the point you are trying to underscore. In “The Road Not Taken,” it could be the notion of taking a different path, or it could be the idea that the choice of path makes all the difference.
Alas, the Moving Finger is nearly as much of a cliche as the Road Not Taken. (It’s not really a cliche—just a victim of overexposure.) What it stresses, though, is the fact that you can’t go back and erase anything once you’ve taken your step. You can’t change history.
If you could boil your focal theme down to a single word or phrase—say, “choice” or “nonconformity” or “decisions”—you could search on it in poetry sites and collections of quotations until you find one that delivers just what you want.
Edna St. Vincent Millay’s candle, for instance, expresses the notion of tradeoffs in your life choices. “Invictus,” cited above, is a good I-did-it-my-way verse, if a little overwrought. Then there’s the “Life is real! Life is earnest!” Longfellow number with the famous “footrints in the sands of time” line. There are in fact many poems that somehow depict choices that run counter to the mainstream, perhaps because that’s the story of so many poets’ lives. So it would be best if we knew exactly what you’re getting at.