Time to Call It?

Did my third sprint triathlon today and DNFd because the water was freezing so I couldn't get into a rhythm and panicked, eventually asking ti get boated out. I also panicked during my last two tris and was really bummed for this one because I spent a lot of time training and was confident going in. They let me finish the bike and run and I hit my goals, so wondering if I should stick with duathlons or give a triathlon one more go?