thanks
I saw a swim coach in Oct/Nov and he said I have a good style just lack power and a few tiny changes. He also said no point doing drills when you don't have someone to see if you are doing them right as you could be practicing to do things wrong. He also said use paddles (and a pull bouy) too.
Areas to "fix" were make sure I return my head to face down (worse when trying to swim fast and breathing every 2 strokes), make sure my left are lifts properly (I sometimes barely missed the water) and to roll when I breath not lift my head (I turn my head but lift it too rather then just turn to breath)
When I've done speed work as advised I've dropped to breathing every 2 strokes but typically this is only 1 or 2 seconds different than when breathing 3+ strokes yet I'm exhausted doing 2 stroke breathing.
My plan had be to do 1hr straight swims twice a week (ideally may be once) and work on endurance as I'm limited with the time I can get into the pool