I think first of all, you have to apply stop loss to your trade and don't let it lose so much ... but if you have already lost big money like that ... then you should think and see if that capital is enough to cover more losses and you can handle it or not .... if you are unable to float more negatively, then it is better to cover it in a loss and avoid further losses and save it for trading and I will personally use stop loss when making transactions to minimize losses resulting from one analysis so that the OP is not in accordance with the direction of the price movement but when it comes to experiencing a loss of more than $ 300 then I will cut the losses immediately rather than hoping the price will return to the OP done because we will never know that the price will return to the OP done.