On the contrary, if your cognition is in place, you basically don't need much persistence or a lot of courage. This is a natural reaction. When you see this phenomenon, such as "underestimating buying and overestimating selling", you will instinctively take action, and there is no discomfort or pain in yourself.
If you don't know enough and limit yourself by the logic of practice, you may be able to do it in the short term, but it will be very painful. It is this kind of pain that you need to face every day that limits your courage to persist, and you will soon give up.The only way to make money by buying and selling stocks is to be patient.
From an interesting point of view, the whole process is very boring, and every step of the operation will make you feel very uncomfortable, otherwise it will not be called anti-humanity. The key is whether you can accept it, be consistent with it and live in harmony with it.