They way I deal wit it is when I am at a loss, I don't even look for days. Most crashes take a few weeks to recover. Just put it away and live your life. Think of it a sa long term thing.
Just set your buy and sell order then leave it yeah ... You don't need to check the price continuously, it would only make you under pressure , trade like there's nothing to lose , believe me you'll get positive outcome most of the times , once a week or twice a week are a normal thing .