As an 18-year-old looking to pursue a professional sports career, I've discovered several sports that are suitable for getting started at this age. Sports such as golf, archery, and rowing are ideal as they focus more on technique rather than physical prowess. In addition, martial arts like Brazilian Jiu-Jitsu and Taekwondo provide opportunities for late starters to excel. Finally, I learned that sports like e-sports and billiards can also be pursued professionally, offering unique and exciting career paths.