I have been practising my swimming lately by myself at a smaller pool apart from masters swim. I've felt a bit over my head at masters trying to follow the workouts the "coach" posts on the board. So I have been swimming solo trying to relax and gradually build my swimming endurance up, just like I do running.
I read the book total immersion swimming. I have been practising their methods and am making some great improvements. I am feeling way more relaxed in the pool and have cut my stroke rate down considerably. I am crusing along without struggle and breathing quite well on both sides.