yes this is the main reason i think why ppl lose their money, they have big and senceless expectations from forex, ppl nortmally start from small lot size but with little profit of money also they become too confident and in thought greed and their luck go for trade big and then loose, some losses also coz ppl can not understand the trend (predict) and so they lose, some ppl also noty use the parameters and rely on themselves for everything so again they lose and main reason not use sl that can be life saver.