Lack of knowledge is yet another issue;
trading without a solid understanding of markets and strategies can be disastrous.
This two above is a wrong step any body must go through, trading requires good knowledge and it is impossible for anyone to trade without any knowledge. Their is no shortcuts to gain profit in trading , every profit happens as result of having knowledge which is the principal tool everyone must possess in trading.
Understanding makes trading easy and interesting, their must be an understanding how the market works and their must be understanding of strategies on how to make profits from trade. Getting knowledge and understanding is very important abd something everyone needs to go after in trading.