you still have another chance to buy bitcoin again and hold it for a long time again and not sell the bitcoin if the price does not increase more than $20k. I think many of us have the same mistake and maybe we have the same worst trading decision but we don't have to regret it and we can make it again like before and maybe our luck will come again to us so we can make a bigger money again. and if we can move from the past and we can learn from the past, I think our future will be good than our past.