i think its not a right time to quit trade you can hold or save your bitcoin for few months wait for bitcoin high price and I am sure that bitcoin will be more increase its price in coming few months and surely your bitcoin will be more grow up.
No, you're wrong at this point, he are not quit from trading but more a worst thing than it, he already retires from this place I think and considering from the date of OP's last activities.
might be needed for him to stay away and find other things that will keep him busy and forget everything, its normal since he is not happy with the way the trade went so quitting is his option.