1. Limit your budget - If you are already in the casino gambling, it will be hard for you to control yourself from betting, so the best thing that you must do is to limit your budget before going to casino gambling.
Another thing I can add is atleast coerce a family member to hold down your budget for you and ask for them for a fund for your gambling, that can help a lot though it sounds unorthodox. Also don't bring your credit cards or anything, just bring cash enough to play about a round or two.
2. Be comfortable on the place - you don't need to get panic while playing, being panic because if thinking that authorities may enter the casino and will arrest you. That is impossible because some casino buildings are legal and have legal paper. So do not panic because it will affect you while playing.
If the casino smells fishy and your gut tells you theres something wrong, get out.
3. Know what games you should play - that is really important, you should play only on those game on which you know that you can win the game, actually, you should choose the game that requires skills and techniques to win.
This helps a lot and I recommend poker or blackjack, skills needed in poker you just have to be good at bluffing and in blackjack card counting works.
Casino gambling more entertaining compared to online gambling because we can really feel the ambiance of the building and we can assure ourselves that we are playing on a legitimate games.
That should be the purpose of casinos but businessmans are using this as an oppurtunity to squeeze people out of their money by promising that they can turn their life around if they play and try their chance to win.