It seems like people had no more interest with BTC and they are dumping it already even if people are losing already their money.
Im sorry for your losses, but world dont care about it. I mean, if someone earned huge money on bitcoin, there is another person that lost huge money on bitcoin. ALWAYS. This time you were on this worse side. But it must be this way, money don't come from thin air. People not loosing and not dumping BTC, weak hands do tho
, people more stable emotionally and with bigger knowledge know that bitcoin is TRULLY revolutionary technology and they don't care about short market moves no matter if it is +80% or -80% 
Good luck in whatever you choose to do now and if you ever invest again, do it seriously or not at all.