Yeah you're right there no such thing like safe trading, but if you know to minimize your loss and escape from the risk, that is implementation of trading safe that you mean. Trading always have risk, not only in trading, every action always has its risk.
I believe that and agree with your concepts but I also believe in the wise trading. Almost 90% of the people who loose in trading are the guys who have either limited knowledge about the market or are unaware of the technology and this is the only thing that makes them prone to loose.
Also Ones decisions and response to the market maters a lot and modifying plans and strategies according to the market is a wise thing when you are in the crypto market. Keep an eye on the latest news about the market and technology.