Luck is a small factor in trading but it can make a huge change in some situation. However, in day trade, I believe that skills are the most important things you need to have. If you do not have skill or experience, do not ever make a day trade. It can destroy your balance less than a month. Without any skills or experience, day trade will become the same as gambling. And you know, people are addicted to gambling although they always lose their money. If you also consider that most swing trades are done by AI today it is not really worth it IMO.