To completely cure yourself, go find an empty parking lot that you can ride in, and go do turns in it. Left. right, tight, easy, slow, fast as is safe in the space available, etc. Step 2 is to park, relax and visualize turning as vividly as you possibly can. Throw in some hazards and visualize various ways to deal with them, playing it through to the final outcome. This pre-programmes your reactions so you can better deal with sand and water hazards, idiot motorists, etc. Step 3 is to go do some more turns. Repeat until you are no longer bothered by turning.
Oh, one of the tricks is to always look where you want to go because you invariably go where you are looking.
