Not only bitcoin that has a price that is not stable. All cryptocurrency is experiencing the same thing. No one knows for sure about the bitcoin price, we can only expect the best price.

Bitcoin's price has been very volatile(unstable) since forever.

As with the price, a lot of people has their own analysis on bitcoin's future price. The problem is that some are bullish on bitcoin, and some are bearish. So to whom should we listen to? I personally don't know either. So what do you do? Wait it out. Time will tell if bitcoin will go lower or get another all-time-high this year.