Lol yeah my worst mistake was when I held onto them for much too long. I lost a bundle of money.
And I sold them too early, we never know whats the best time to sell them, who knows if in future BTC goes and touch 3k $ and then we will regret that we sold it at 420$ ( current rate ) 
. I guess this type of mistakes will keep on occurring and will be shared here for ever.but the fact is not that so if you already sold. I think it does not need to weep again