No matter how much you study or gather knowledge prior to investing, you learn investment only when you jump with real cash. Techniques like paper trading can help you a bit but they are no way a replacement of real money investment.
Everyone want to buy Bitcoin when its up and not much pay attention to bitcoin when price is down. There is no harm in buying Bitcoin when it goes up but buying with intention that price is going up so I may buy Bitcoin to get profit is wrong approach. In fact this is what we are discussing here that there must be a strategy that must be span over a period of time (4 or more years) before you start seeing the real profit.
Now price is up and many people are buying, as evident from Bitcoin fear and greed index. Same ratio of buyers is not seen when price is down.


https://alternative.me/crypto/fear-and-greed-index/