Sometimes many newbies get their gambling life ruined by their first big hit winning, this is what mostly happens to those newbie that will think that he have suddenly developed a strategy to keep hitting such big winning on a consistent basis, this make things a bit tough for them along the way since they come to a point where resistant becomes an issues and at that time they will begin to lose uncontrollably.
And also the winning money goes to the wrong place. Empty and uncontrolled spending, which can lead to other addictions. For example, it can be alcohol addiction. I read about one such case. One family managed to win a lot of money. Several years passed and people were surprised by what happened to them. They became drunkards and drank away absolutely all the money. It was hard to believe, but this also happens.