There is no doubt that day trading demands all these things which are not easy to be present in one person at the same time. To adopt all these qualities and make them habit, the day trader is required to put significant efforts to mold his or her nature accordingly. But once he or she has acquired what is required, the person is not going to suffer from any major losses rather will make huge profits.
And that is why most day traders fail, they do not get to understand that in order to become a day trader you need a very specific skill set that is not present in the majority of traders and that you need to train those skills over time, even if you are a very talented person and you read the right books it is impossible to be a day trader because it requires the highest level of concentration and ability to make decisions in a matter of seconds and to be consistent for months and years.