Well... maybe not. On the other hand, swimming appears to be within reach. After struggling for about half the session today and all of last week with the random drills that they had made us do, I finally started to get the hang of it, when they gave me a drill that resembled actual swimming. I'm not very balanced, my breathing needs a LOT of work, and my technique is non-existent. However, I'm super close to getting to a point where I can continuously swim without stopping, which would be a huge accomplishment for me.
I'm starting to think that I will actually be able to do a triathlon now.