I think it is not enough, even to be persistent and devote a lot of time to it, it is important to understand that the strategy that was invented or taken from someone works, and this can only be checked after a long time and many balances. During this time, nothing may remain of our bankroll, and we will no longer have time to check strategies again. Moreover, the casino always monitors that there are no too winning players, they put the cash flow of the institution at risk and the casino will never allow winning players to become more than losing ones. In general, at the moment I am definitely a losing player, because I do not have a strategy, even after a long time spent in the casino.
Irrespective of the strategies you employ in gambling, the end result always turns out to be thesame, more loses than the wins and that is what majority of gamblers experience but sometimes, due to the amount won, we may forget about our previous loses, and consider ourselves as the winner of that gambling session but in reality, the house has been on the wining side. Spending more time to gamble doesn't guarantee success or increase your chances of winning huge. Sometimes the opposite happens, the more you play the more you loss and that is why addicted gamblers keeps playing because they are always chasing after wins or their loses which would be very difficult to get when you try to gamble too much.