Many people think they are without really being and this is a very bad thing. These people have in common being arrogant and saying that they know what they are doing but the fact is that after a very short time you will see them losing everything.
I am not an expert gambler, just a casual one but from what I see here is that we have yet to find a true expert. So far I have only seen experts in Poker Tv series in real life.
Imagining yourself as an expert in gambling or in any other field will not help in any means. Our capabilities and what are the results we are producing only must be deciding our expert level. This way, I believe no one could be expert in gambling because no one could give consistent results in gambling. Winning and losing will be coming more frequently hence no one could imagine themselves as an expert in gambling. Even they do imagine, their results will prove that they are completely wrong.
I guess it would be much better to call themselves as not an expert in gambling because that will not give them any confident so that they will keep trying with gambling. When you are not confident about your capabilities then you will stop at some point. Stopping in gambling is more important as far as I have concerned.