We're all sceptical of arsenal. However, can you be "highly" sceptical? I'd have thought being sceptical is a binary condition (like pregnancy) - either you're sceptical or you're not. Although my scepticism is lifelong as I grow older I find Stoicism more helpful. In that regard Marcus Aurelius is a great model - especially in his attraction to much younger men, sadly suppressed (I've failed in that respect)