In fact, the only way out is trading. You can constantly buy and sell them, so you can also make money.
I don't think trading is a way to protect our Bitcoin from volatility. The volatility is the nature of Bitcoin. Although we trade Bitcoin, we cannot avoid the fact the price is always fluctuating. In my opinion, there is no way to avoid the volatility, it is impossible. What we should do is finding a way to deal with the volatility. Buying when the Bitcoin price decreases, then sell the Bitcoin when it reaches our target in selling. It is a simple way to deal with volatility.