Wish you had been in the lane next to me! I would welcome advice!
There was a young man in the lane next to me once who was really struggling with getting through one length of the pool. He was very fit and obviously good at most sports. He asked me 'How in the world do you breathe?'.
That was a year or two ago when I was still trying to get figure it out myself.
Since then I've gotten much better, so I would have much more to say to him!