Did you sold your coins, or are you saying that the portfolio is down in terms of fiat? If it is the first case, then you can only blame yourself. There are hundreds of threads here in this forum, warning the users not to indulge in panic selling. If you sold your coins despite all these warnings, then there is hardly anything we could do about it. If it is the second case, then there is no need to get rattled. We'll be back to the previous levels in a month or two, and the basics are still strong. Just need to sit tight.