I understand that you are devastated, You virtually lost more than half of your investment. This is many people would recommend not to put all your eggs in one basket but since you have already did, it seems that you did not lost hope totally. You are still willing to wait until bitcoin hit the $11,000 mark again which I assume is still possible. Just HODL sooner or later the price will recover and you will be able to get back what you have virtually lost.