Few months back i purchased arround 15 to 16 btc when bitcoin price was 10000$ to 11000$ each btc but now arround 4000$ each btc .Just waiting for 11000$ for each btc than i should leave btc and i can see bitcoin have no future in this time.
You need to be patient if you want to recover your losses if you sold it for today's price you are losing huge amount of your investment I also bought Bitcoin when it was at 8k$ and until now I'm holding it and if it bottom further I'm planning to buy more to lower my buying average.
I am in the same situation as you. Bought at 7,5K. I am trying to trade on the fall, I sold after breaking the 4K border and bought again at 3,3K eur. This way I am trying to decrease my buying average. Now I sold some BTC when crossing 3000 eur. This is really tough to predict what will happen. But I can not just hold and pray for turn.