By sailing the straight across the Atlantic ocean
Answer: Because the Court ruled that Scott was not an American citizen, any federal lawsuit he filed automatically failed because he could never establish the "diversity of citizenship" that Article III of the U.S. Constitution requires for an American federal court to be able to exercise jurisdiction over a case.
The hardest part would be the puberty or voice changing or maybe the awkward part of being a teen in general maybe the acne or other moles you might get...