It is holding you back.
I love the beach. I love the sea. I know how to float. I know how to swim...only when the water is up to my neck. When the water is way beyond my head, I call on my best friend, the life jacket.
Then one day, out in the middle of the sea, we stopped to go snorkeling. I put on my snorkel and fins and jumped in. It wasn't until I had been in the water for some time did I realize that I had been swimming merrily without a life jacket.
Don't think, just swim. (In other words, it is all in the mind!)
For more lessons from the road, please visit Go Learn.