Bitcoin is just too volatile!
Too volatile for trading, or too volatile for holding?
Traders tend to complain when the price is range-bound or flat-lines. They like volatility, because they can buy the dips and short the peaks.
Holders - like me, though I do trade a little - tend to focus much more on the fundamentals, and, since they're in it for the medium- to long-term, they're not worried about volatility in the short-term.
And if its volatility does worry you, remember:
"I can't sleep," answered the nervous one.
"Why not?" asked the friend.
"I am carrying so much cotton that I can't sleep thinking about it. It is wearing me out.
What can I do?"
"Sell down to the sleeping point," answered the friend.
-- Reminiscences of a Stock Operator, p.98.