I signed up for my first 2 tri's this past summer. I couldn't finish either swim. The first was due to a dislocated shoulder about 100 meters into the swim from a well placed kick and the other was an anxiety attack, hyperventilating and the whole bit. I have done up to 2000 yards in a pool but not much open water swimming. I know that it is different but is that what is causing all this? I have to think this can be beaten. I guess it relevant to add that I just learned to swim this year. Thanks in advance, I don't want this to be the reason I don't do tri's.