You are very correct OP, it is not limited yo trading but to every form of investment, always ensure you invest an amount you are able to bear its loss, do not borrow to trade or invest and always trade with core knowledge and emotional balance
The reason that people are losing when it comes to trading is because the people who introduced them trading or investing is that they never specify that it is a slow process and that there are so many risk, these people are not to be blamed though because they didn't know it too, they are as innocent the people who want to embark on a trading and investing journey. The real fault lies on the individual because they are to blinded by the riches that the endeavor promises, remember that all that glitters is not gold. We can always put our mind into it if we want to become successful in these, we must constantly remind ourselves that trading and investing means growing.
True!! Don't just believe in other words. You have to work yourself in order to get something. Being successful is hard, being successful in a market that you don't know anything about is even harder. Therefore, get to know some stuff! It'll help you a lot if you have knowledge about what you're doing. Also, there's a lot of risks in this market and that's what you have to accept! Take other words as advices for references. Don't take it to your action!