there's a lot of ways to turn gambling into profitable way. but its still depends on the gambling games you're playing but if you really want to turn it into profitable activity when your bankroll have been doubled stop playing and take that profit or else you could lose it all remember that playing for a long term is not a good idea specially when your playing on a gambling sites because gambling sites wont ever let you to beat the house thats why theres a lot of gamblers losing because they dont know about this.