If you are interested in making money of crypto for longer than a few lucky breaks, backtesting should be a tool you are cosy with. There is hardly a profession today that does not rely on data and historic research to devise a strategy. Backtesting crypto strategies has become so easy, that this blind spot for the rest can be your edge.
To be profitable in the long-term you need to know how you tick, and what kicks you off your course. Even if you plan there will be doubts. Let's look at some biases that get a bit less attention than loss aversion or anchoring, making trading psychology harder to master.