Some of us doesn't make proper research before they establish trading, and that's the reason why some of us continue to experience loss in any attempt they made in trading...
• We need to learn and understand the key roles of trading before we go into trading
• To know that trading have advantages and disadvantages
• The risk in trading can lead you to lose whatever you have
• We are to know the market analysis of trading before we join trading
• Most important, to understand the Risk management
• The final, To know when to buy and when to sell
I think most of the newbies doesn't make inquiries before they go into trading, and that has been the reason why they continued to experience losses, making research and understanding the concepts of trading will make people who is new in trading to at least not to loss too much...
I think your first statement should be some of us don't bother learning about trading before they start trading they just feel it is easy and without knowing they can still do it and this has made a lot traders lose so much money.
Just hearing of how people make money from trading doesn't mean it is easy way to get money, people think it is easy to predict the market until it is time to make the real prediction that is when you will know it is not easy.
Most of the points you outlined are all still related to learning about Trading so learning is basically the most important step to take as a beginner in trading so all new traders should first of all learn both the basic and advanced aspect of trading if they want to be able to minimize loss. Aside of these I think some personal qualities are also essential like patience and also not being greedy.