Probably in the wrong place, but
For various reasons, dd has just turned 8 and still can't swim. Despite many efforts not been able to enrol her onto course. She'll soon be starting new school where they have weekly lessons and she will be the only one who can't swim 
I've been trying to teach her this week but not going well.
She hates water in her nose so keeps holding onto it with 1 hand.
Her body isn't streamlined in the water so she sinks slowly (quickly)
She can't coordinate arms and legs.
She can't lift head for breath so 'swims' 2M (with hand on nose
) then stops, breaths and carries on.
I have watched loads of you tube videos.
It's not working. How do I resolve these problems? It's so frustrating for her and me.