Bitter experience was not surprising. I began to be interested in crypto currency at the most favorable moment. After I bought bitcoin, the market grew significantly 
This is like my experience. what OP say' i also join july 2017 i think. The price grow significant, but i not withdraw it all, i still trading it until my total balance is decreasing. But i already withdraw so much for my needs. No one can predict crypto, but if the price fall, someday the price will raise up again