I can totally relate to this! I find that when I get easily ticked off at someone, it is usually because I see in them a trait that I myself exhibit and don't like. I've notice this time and time again. Sure it's easy to avoid that person, but will that solve the problem? I doubt it. It is solving that emotional pain, anger or hurt that will finally alleviate emotional triggers seen in others. Of course, easier said than done. But when I find myself blaming someone or feeling really ticked off by some traits in them, I go to gratitude and think about all the good in them. It instantly takes away from the emotional frustration and leads to a calmer and relax state when you can interact with others peacefully.