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.
That is one of the worst things which could happen to a newbie, in my opinion, because since they lack of experience , they will assume gambling and getting money from the casinos is easier than all people say, so they get into berserk mode with more money they can afford to lose, in order to get even more and more from their session, when the correct and more logical thing to do was withdrawing their first win.
In the end, if a newbie starts their gambling journey with a loss, they will start to learn lessons on bankroll management and try how comfortable they are with the amount of money they gamble each time the log into their favorite casino, eventually becoming mature enough to know when to quit or continue. It is completely the opposite that happens when a newbie gets a good win from the very beginning.