Simply? bitcoin is not going anywhere. Rich people will always manipulate the market and try to make profit of it. long term holders will eventually be the ones who make the biggest profit, checking the price on a daily basis will only give doubts and encourage you to sell, Its better to hodl and forget about them for sometime.
Looking at the graph on how the value of bitcoin goes up and down, you probably can compare it to a roller coaster ride. But if you analyzed carefully the details behind that statistical graph, that is where you can get a decent profit, only if you will ride that roller coaster wisely. Almost all investments had their own ups and down, that is somewhat normal. In bitcoin, we experience a more active and faster movement. Just enjoy the ride guys.