the thing is that most gamblers always thought that they could possibly outsmart the casino by going on in with high risk and in the end their end up being caught up in the web, self-control is very important but most important also is to set aside an exact amount you want to gamble with and anything above that should be avoided in all totality.
Don't ever spend too much time gambling trying to chase any direction is the fastest way to keep losing.
People on average overestimate their abilities and underestimate their flaws, so when faced with the challenge of outsmarting the casinos and beat them at their own game they naively think they can do it, then once they begin to notice this is not the case their ego takes over and they want to fulfill this goal, then once they realize this is not possible they want to at least recover the money they have lost, and each one of these steps leads them towards a path which is very difficult to escape as at that point many would have developed an addiction already.