I think we all agree that the most fear in crypto is the death of the crypto world. However, it seems not to happen in the near future, we will have a long journey in crypto space. As long as all parties support crypto industry, then we don't worry about the existence of crypto world. In the past, something that I am afraid of is when all the governments in the world try to stop the existence of crypto world together. But if we look at the current update, more and more countries in the world legalize crypto.
You cannot harbor fear if you want to thrive in crypto currency; infact you must set aside your emotions totally when it involves crypto currency trading; investment etc because not only does it clouds your mind; it lets you make wrong decisions instead of facing realities. You do not need to worry about the rest of world; as an individual, figure out how you can make the most from bitcoin; then involve your friends, that way you have help spread adoption of bitcoin and blockchain to your friends.