Ahh, its not that rough ride made. Actually with smart investment and methods you could have earned bigger profits and wouldn't be arguing about the roughness of the market. Its simple that bitcoin fluctuated from 12k to 5K and now it is again regaining the dominance. This means you would have earned profits if you bought at the bottom and sold at current high. Now the bitcoin is dropping one more time and its time to buy and wait for the another hike. If you do that then surely you could earn profits rather than loosing something.
Of course, those who have a plan or an investment method have a higher chance to make a bigger profit. If you come in " blind" undoubtedly you will loose profit.