I have taken cold showers a couple times in the past. I havnt took a cold shower recently, because of the winter season. And Im very afraid of stepping into an Icy cold shower. When I first step into the shower, I usually start off the cold shower by turning the knob to the warm/hot water temperature for three minutes. When the time past, I slowly turn the knob to the cold water of whatever I want the temperature to be for another three more minutes. Is this the right way of taking the cold shower?