Bitcoin is a crypto currency, all currencies make upward and downward trends from time to time. Bitcoin is and other Crypto currencies are taking over the world economy. See every dip as an opportunity to buy more.
Invest now and smile at moon
The more the price of bitcoin increases the more it fun to invest bitcoin. This is what I when I know that bitcoin are rising up again I invest bitcoin to my digital wallet, sometimes I convert it into fiat when bitcoin price were low, it is like buy and sell bitcoin in a right decision and right time. It also worth it when I invest money, because it gains more which made me so happy.