Finally..I'm a swimmer!

Congrats! Believe me, I know what it's like to be able to swim only one length of the pool and have to stop and rest for a good chunk of change. You have to be patient. Hopefully you won't have to wait nine months or so, but I did, and came close many times to saying, "to hell with this." Next step is to see how many sets of 25 yards or meters you can do. Then you have to see about reducing the rest time after each pool length. Get help and asistance from a coach or somebody knowledgeable. I hired an instructor who gave me weekly half hour lessons which help me a lot, but still didn't get me breathing comfortably to do continuous swimming. That seems to only come from within. I finally had to force myself to swim sets of 100; shear force of will. Then came sets of 200, and then that glorious day of swimming 1x900. Can't believe I'm saying this, but I now enjoy the swim. Though I had to DNF my last tri, due to flat tire issues, I looked forwrd to and enjoyed the 900 yard swim. Now I can work on form and try to get some speed.

Keep with the running, but take it easy and work speed and distance incrementally. I started running at age 45 and had to go through my knees protesting this new activity. I initially pushed myself too far and too fast and had to go through icings, knee wraps, and a lot of knee workouts. As for logging your milage, I'm not sure what the more experienced would do, but I would log the whole distance, and break down the times and distances in the notes.

You didn't mention anything about biking. Hopefully you have a bike and are getting the miles in there also.

Congrats :-)