@Madridghost1 she is right and also wrong.
Number of credit card doesn't do anything in any way, what you want to do or should do is get a credit card and use it only for purchases you have actual fund or budget eg you have ยฃ100 for your groceries, use your credit card and pay it off.
@girlsMum1 I would suggest appreciating the little you have no matter how small. Your happiness starts with you and you would be surprised that these people you are jealous of might be unhappy for many unknown reasons personally. I hope you find happiness with yourself.