That 50 free is not a time to disappointed about in my perspective! But I know what it is like to miss your goals. I have swim goals to and some days in the pool they seem pretty far off.
I have to say that the Libra thing I can relate to as I am too. As a 1500 to 5K runner, I have enjoyed the high of the open legs and high octane, but there is something incredible about a 3 hour run too.:]
You live in a sweet spot of the world up there, bet though open water w/out a wet suit is only possible in the late summer...if that?