I will not advice you to depend on technical analysis especially the moving average cross as signal of either bitcoin prices is moving up or moving down. As a traders you should concerns yourself more on the reason why price of an asset is going down or moving up. The fundamental analysis tell you the story that is moving the market, the best trading strategy is knowing the story that curse those fluctuations and plan your trade around it. Though trading is a very risky venture, you can succeed if you focus on those issues that moves the market.