Sink or swim

Was hoping that sinking wasn't going to happen as I started the task of conquering my fear of being out my depth in water.
When I was having treatment with Sue my physio and we were chatting. I told her about my dream to be able to swim in the Lake but had a crippling fear of being out my depth. She said I'll help you get over that.
I only learnt to swim in my late 20's as nearly drowned as a child and had a fear of water. I'm a ok swimmer but panic being out of my depth.
Tonight, with Sue's patience, to submerge my head under water, glide in the pool and tread water for nearly a minute. So happy.