Life is decided by no factor stronger than the company and the environment you give yourself. So be careful. Be careful about the people you meet, be careful about the stuff you read, be careful about what you eat, be careful about what you are seeing, what you are hearing. Just don’t let stuff in indiscriminately.
Yes, of course, a point comes when you can quit all care. A point comes when you say that, “My immunity is now so strong that I don’t need to have any defenses.” Till the time that point has not arrived, please be careful. Better watch out.