The BTC market is unpredictable in the short term, but longer term the obvious patterns form. If you are a long term bull, then trade on the long term patterns. Buy/accumulate when the market is bottomed and no one cares, sell near top of rallies. Then be patient to get back in, because a rally bubble can take a while to unwind. A LONG while. There may even be several mini bull runs/short squeezes along the way, but ultimately the price ends up bottoming out way lower and all volume/volatility dies.
How about this as a strategy for a lazy trader (like me)? It's the cross-overs of K and J of the KDJ indicator.
