Traders have been losing most of the time because they are greedy, they want to make huge profits. If they trade in a disciplined manner and set their target to a decent profit then it is most likely that they would succeed.
Most traders that you see following these decent profit taking parts are usually pro trader that has had experienced in life and has seen how greed can really consume and destroy ones trade. Most of the traders we have now are still learners and has not gotten burnt before in their trade, once they lose their major trade one or twice, they will understand the danger of being greedy, and the remedy to solve those greed problems, which is usually to be self-disciplined first and then make use of some of the trade tools that is available on the trading platform to set trade and also take trade at a particular time.
I usually don’t advise new trader to manually trade if they really want to overcome greed, I ask them to just set their stop loss at 3 percent and then set their profit for 2 percent which they should practice that way for long for them to get use to taking decent profits when they become a pro trader.