I'm already plus and I have no reason to be broken even if by 2019 we will fluctuate between 6,000 and 7,000. The growth will be, just everyone will begin to invest more strongly in altcoins and new projects to earn and there will be no such volatility in bitcoin.
This year is not good so far for bitcoin but it doesnt mean that it will remain the same forever. The future is bright and the price will also grow. We need to be patient and wait for some more time. Nobody knows the future, but we should be optimistic. The current situation of the market is for the time being and will recover soon in the future.