Have you put in long hours at the pool? Have you been to the weight room early in the morning? Have you been swimming early in the morning? Then again at night? Have you heard other people whine about how hard their sport is? Have you popped pills for at least a few months out of the year? Can you eat more than a horse?
You probably know then that swimming is the hardest sport you'll find. You also know that swimmers are the hardest working athletes around.
Be Proud. You do what many others are to afraid to try.