The advice is actually right, you need some serious help their buddy. Asking for a refund after losing is never going to happen if it's an outright activity that you did there.
There's really a serious matter on your case OP and those are signs and you have to admit it and don't put the blame to any casino where you voluntarily deposit your money and gambled with it.
Yes, you are right. Before we gamble, actually, we know that gambling can make us lose our money but we deny that and still deposit the money and play the games. Some people make money from gambling while other is not. Blaming the casino because of our loss is not good behavior because we know the risk and the casino is not asking you to deposit more money, but they only give you the promotions that you can take or leave. The choice is up to you but most people will take that and not try to blame anyone because they know the risk.