This is one of the main problems with btc right now, volatility, Im afraid because of this mainstream adoption is going to take longer, untill we sort this problem out, we need to make it work like the fiat currencies.
This is not the only problem with it, there are 4 in total which has to be sorted out, before mainstream adoptian goes off the scale
Volatility actually the main characteristic of bitcoin or cryptocurrency. That is the advantage of bitcoin especially for trader to take profit.
But recently, the volatility is very high, it make many people a bit worry include me. About when it will be stable, nobody know for sure.