sometimes when you try too hard your brain just gets in the way, i did the same thing when learning to juggle(lol yeah, juggle). if i concentrate really hard, i mess up. if i stare at the wall and just do the hand motions, it works perfectly.
my left hand is the one i write with, but i dont think i could spin a pen at all with it. my right hand has the most coordination, but cant do the specific small motions required for writing. this might just be because i used to me ambidextrous, but i think some other people are the same as me.
