the most annoying part for me is learning difficult skills as quickly as others for an example i’m a medic in the military and i applied for a pretty tough course whilst in it included things like basic soldiering skills to a super high standard marches with increasing weight land navigation etc as well as being put through mock casualty  scenarios that included treating traumatic injuries triaging mass casualties  etc   i was one of the fittest there and a competent medic as i learned my skills my own way in my own time but when i was put in that scenario of a small group being taught different complex skills by instructor i just couldn’t concentrate whatsoever and kept making mistakes then worrying about making said mistakes meant i could not concentrate and it creates this awful negative feedback loop