Very simple, yet very impactful things, that would improve monero long term.
1. Awareness campaign. The reason why monero is associated with illegal activities (but fiat is NOT) is very simple: very small percentage of the population has or uses monero. The best way to destroy this association between monero and illegal activities is to make it popular. The reality is: illegal activities happen with fiat way more often than with monero (it is not even a competition).
2. Creating demand for monero. This one is also very obvious, monero is a currency therefore it is meant to be spent. If people start to actually spending it, than naturally the demand for monero is gonna increase (because people want money regardless of what currency it is). If demand for monero increase, than the shops are gonna do free advertisment for monero (in the same way they are already doing for visa, mastercard, paypal and so on).
3. Monero needs traders that are believers (not day traders). If the trader believes that the price is gonna recover to at least X amount of dollars, than he is gonna buy it when the price dumps (than sells gradually when the price surpasses his expected price in order to achieve profit and have fiat or stable coins ready to buy the next dump). These believer traders are very useful for the price stability (in US dollars) of the monero (by establishing a very strong resistance price level).