Well fear is your friend in some cases, and precaution your instinct to survive. So, sometimes what you're afraid of doing will save your ass. Especially, if the very thing that your afraid of brings you harm, and the people around you. Trust your gut.
Never waste your time trying to explain yourself to people who have proven that they are committed to misunderstanding you. And don’t define your intelligence or self-worth by the number of arguments you have won, but by the number of times you have said, “This needless nonsense is not worth my time!” --- read: http://www.marcandangel.com/2014/04/13/20-things-to-stop-letting-people-do-to-you/