I was in the ''top stream'' in a snobbish all girls school, however I also was not helped to ''cope with anxiety'' but was labelled with various unhelpful things... including by ''my doc'' who utterly failed at ''his'' job, which was to listen adequately. and to treat me with RESPECT
I'm sorry you're suffering in this way. I very much doubt if you are ''cognitively deficient''
Respectful regards