If you feel you have a potential problem with gambling it is best to just walk away it is very hard not to let greed take over and keep searching for that big win. I don't know why we are never happy with a win that makes us want to put it all back and more all in the hope that we get a big win.
We would probably gamble that as well. Sometimes it is just something to fill the time but have to watch that it doesn't become a big problem and deal with it before it does.