Dude ,sorry to be so frank ,but have you ever played in any competitive sport ?
You have got to be in that environment and feel the adrenaline and pressure , facing someone or a team better than you and see how it feels to deal with it .
It is only then you can appreciate other athletes and what they go through and their body language and eyes tells a lot about them ,but if you have been watching the game and reading about it alone won't allow you to make a fair judgement .
if you couldn't tell how confident Beiranvand looked ,well that is your problem dude , I can't change that by writing a reply to your quote " my favouritre player compaerd to a 12 year old playing in the park" ?! ...LOL ..ok dude !
I never said you got be poor to be mentally strong ,and aren't Spain and Portugal traditionaly giants of world football ? they had a bad tournament for their own standards but they were recent world and European champions and we haven't even won the Asian cup for over 40 years !