I've been noticing the price usually periodically dropping. The price doesn't exactly drop significantly. Just enough to make people stressed and rather worried. I have always been in a position in which the price's increase has indeed always been a reward for people who truly believe in Bitcoin and care for its well being. It can be rather worrisome when you've placed $400 worth of BTC in your wallet for price increases, then the next day you find that you've lost about $50. Sure it's not a huge number but it's a number nonetheless.
What can we do to make it only rise and never fall? I have been meaning to have this question answered.
Actually this is interesting question regarding not only bitcoin, but economy in general. Fast answer, it is not possible to have continuous growth - it is not sustainable in the long run.
I am not sure if you know that crisis in economy act as cleaning wave. We can tell the same about stocks, commodities or general price fluctuation of speculative securities.
Price drop=micro crisis.
Bitcoin is not an exception here. When we are hoping that price of BTC will be only growing then we usually have exchange hack, rage quit of a developer or other random event crashing our hopes.
We can't foresee it, we can't predict it and we don't have any influence over the market to make it oblivious to these kind of stuff.