Anger is a strong emotion. Everyone should have the ability to express it without fear. It’s OK to be pissed off for personal reasons. It’s helpful to have people in your life who understand what you are going through and won’t think you are a freak. Anger ideally should be a seasonal thing. If it goes past that season then perhaps getting some help would be a good thing to do. The best thing one can do is to express it, let it out and not to stuff it in. Too many people will do that and it will impact their mental health for the long-term. People who love you will understand the reasons you feel the way you do.