It's really a good advice you have given to us here and I think the major problem is been able to keep those tip. I do believe that majority of us know all this point you have listed but keeping them is the really problems with investments and trading. For example it is impossible to keep trading when you know that the market is going against you and you are lose.
The most difficult thing is the psychological control when the market starts to appear red because it will be a time when you will be very difficult to calm down and easily fall into a state of panic. I think this rule is only applicable when the market shows signs of new growth and we will make a profit if we can calm down at all times. Of course these tips are useful but for me this is not the best advice because the bear market often brings surprises to everyone.
The main reason actually we have encountered mostly is our uncontrolled emotions in trading. Greed, panic or fomo should be controlled. Proper knowledge is always there when we are supposed to enter in any kind of trading. But self controlled emotions are hard to do in real life. Set goal, set stop loss, learning technical analysis. This may help a lot in our future trades.
It is undoubtedly true that the three tactics you mentioned here will sure guarantee a trader of success when they practice it. People really too lazy to learn technical analysis which is why they fall victim of trade guessing.
I can tell you that 50 percent of traders dont apply any technical analyses, most of them enter trade with emotion, and they believe that whatever steps they take at that moment will favor them, which they fail to accept the fact that the market they are trading is one that cannot be ever predicted and being manipulated by so many factors which only proper analysis can lead them to the right direction that will make their trade very fruitful.