There is no denying to it that if you bet big fund then only you will win big but sometimes lack of patience will lead to loss. So its upto trader to risk what they can afford to loose rather going with all fund in one go thinking they will gain good profit.
Pro traders are the ones who succeed in trading because they know the strategy to use and knowledgeable on what they are doing. For an ordinary trader its hard to risk our hard-earned money because of the dilemma that what if you fail or you lose your money. Thats why it takes a lot of guts because everything is uncertain and depends on your plan and strategy.