I think the interest for bitcoins is still strong right now, it's just that people are very unsettled about the uncertainty of the next 6 months. There are so many issues the world faces that makes investing unpredictable. The Russia Ukraine war is still going on with no end insight, economic growth is slowing down world-wide due to rising inflation and the covid pandemic might still not be over. Without these issues the bitcoin price would be much higher with many investors buying instead of selling.
The most important thing the average bitcoin investor can do to stabilise the price is, not selling. Not giving into the selling pressure is already a big deal. Like this there is already less downward pressure on the price and also less supply for the short term traders who are looking for a quick profit. Right now the volatility is very high with prices jumping 5% in a single. Getting some more stability into the price would be could to calm nerves of the big investors. The second step would be to start buying when the price is below 30,000 USD.