no one can sell at the extreme top like i sold at $12 , $11 and so on well i am happy coz at that time i had no experince at all in this field and few people here on steemit who are recognised as top traders who publish chart daily were saying at that time it will hit $22 if i had kept holding them i would have been rekt today ... one thing i understand from the crypto market is that these tokens all of them are useless you either take profit or sell because in the end nothing is gonna be certain except bitcoin if you will love a single coin for example any crypto you don't know its future all you know is the present time many projects died who held their ico in 2017 only few are running and you can't be certain what's going to live in 2020 and so on that's why bitcoin is the only king that will thrive and succeed