Always have a strategy with written rules. Never be afraid to change the strategy. But always follow the strategy.
Most Millionaires dont carry a mortgage on their modest home[source = book by Dr Stanley, Millionaire Mind] Some call him Dr Stanley, Dr Charles Stanley, but his name is Dr Thomas Stanley
"The more you understand the concept you are trading, how it might behave under all sorts of market conditions, the less historical testing you need to do." - Tom Basso
"There is only one side to the market; it's not the bull side or the bear side but the right side" - Jesse Lauriston Livermore