You are right, if we are not a professional trader, we should become a long-term holder, because this is safer and more profitable. Becoming a professional trader requires experience and of course having analysis and predictions that are close to accurate, and as you said being able to manage emotions well.
Trading is easy but for those who Know about it and who have gained experience in trading by losing a major part of their income so they have sacrificed their money, time and emotions just for future success. But nowadays everyone wants to earn huge money without losing a penny and without hiding their emotions but it is not possible as every success requires patience and will happen in due time.
It does not mean that investment does not require knowledge and experience but during investment you have patience you can carry your investment until a time arrives when you can sell it in huge price. Trading and investment both need knowledge and experience but there is a greater chance to lose in trading then Investment therefore everyone suggests newbies to enter first into investment rather than trading.
In investing we only buy when it is bearish and hold, while in trading we must always monitor the market. In contrast to long-term holding, we only wait for the bullish season. both btcu experience and knowledge. in trading and holding. but trading requires the ability to predict short terms
In the case of trading, one has to buy and sell one of the coins, on the other hand, in the case of investment, one has to buy and sell one of the coins, but these two are completely different. Investing is usually planned for long term whereas trading is planned for short term. In the case of investment, an investor does not need to monitor the market so much but in the case of trading, a trader needs to monitor the market a lot and also needs to spend enough time in the market. Trading is fine for those individuals who have enough time and can spend enough time behind the market. Investment can be made by the person who can only wait for the results and who can hold his investment for a long time.