I'm "long-term bullish", as the saying goes. I think Bitcoin has material benefits over the currencies in use today, and there are people morally or emotionally invested in the project's success; as long as such people exist, and as long as there are demand for such material benefits, and as long as there's not a superior competitor, Bitcoin's gonna continue to exist, and continue to have a market value. So I've based my trading formula on the notion that while the currency may be volatile, it'll never depreciate to zero; as long as my buy-in someday returns to its amortized original value, every fluctuation will have been to my profit.
So where will I be? Riding the wave, as it were, or at least letting my scripts ride it for me. They'll have bought for me on the way down, and they'll sell for me on the way up. And meanwhile I can do whatever it is I'm doing with the other 90% of my life at that point.