Stocks are like this. Sometimes you'll pick one because it looks good, then as soon as you buy it, some other stock starts making the news and yours is lying there like a dead fish. You will be tempted to sell your stock and buy the new one, but don't do it. Trying to time the peaks and valleys of a stock's life is an exercise in futility. A stock investor needs to do some research before they buy a stock and stick with it for at least a few years.
Stock is a certificate representing partial ownership of a public company.
Stock is divided up into shares, and the number of shares of stock a person owns states exactly how much of the company the investor owns. Owning stock in a company gives you certain privileges that the average person doesn't have. As fun as voting sounds, it isn't the key reason why average folks buy stocks. In fact, since 1930, there hasn't been any ten-year period where stocks were less valuable at the end of the ten years. Even from 1925 - 1935 investors would have seen a gain despite the Great Crash in the early 30s.