Hi, so I have been "profitable" for 2 years straight. In my experience it is the same reason why people are not successful in other areas, and it is fear.
Fear is not just that conscious feeling that prevents you from doing something, in fact most of fear is subconscious.
We live within limits that are very difficult to notice.
I give you an absurd but informative example: who does not want a Ferrari? However, if you saw one on the street, you wouldn't think of stealing it, or maybe if you thought about it, but you wouldn't steal it, because you don't want problems, right?
Well, in trading, in my experience, it's similar. You see the price and you feel that you need something safe, some indicators that make you feel in control "I only enter when that pattern is confirmed" but then is too late; and it does not occur to you to launch yourself without any indication to the market.
The truth is that you do not need so much paraphernalia to invest, just as it is not impossible to steal a Ferrari if you think about it rationally, but fear prevents you from taking the action. The reality is simpler but fear prevents us from seeing it.