Before I go to bed, I watched $BTC going down. Honestly don't now how deep it can go. But when I wake up, my position was filled and I got floating profit. It was supposed to be $30 profit at $61150 but I forgot to set the TP level. So if you want to trade, don't forget to set your TP/SL guys!
Finally I can close this position. It's better profit a little. I can't watch my account with minus position. Next I think I'm gonna open short, since the momentum on $BNB decreasing.