Everyone makes mistakes, I don't think you need to feel anxious and disappointed, maintain good attitude and courage, and look for the next chance to make a profit.
I do not think that all made so many mistakes to lose so much. Simply the market fell down, and nobody could predict it. It is crypto trading, and we must take the rules of this business and live with them.
Yes, the crypto market rules are so - the market is unpredictable, it is hard to count the date of decrease or increase just on the contrary, no predictions work, and the market is unstable, of course you should be very attentive and try to understand first before making decisions and learn a lot, but this year 2018 even the experienced traders and investors have suffered, personally I have lost a huge amount of my assets. But will see what this year will show us.