(smile) Everyone gets angry. Even the Prophet Mohammad (SAWS) would get angry. The problem is not the emotion itself, it seems to me, but in how you respond to it. For instance, if you feel angry because something is not right, and this motivates you to try to do some good in the world... then this is a good thing. But if you feel angry (for whatever reason), and you lash out and cause some harm to another, then this is a problem. (smile) It seems to me that what we need is to acknowledge our emotions, and seek to understand them, while trying to restrain them and channel them into reasonable and healthy actions.
I liked the hadith quoted by Ahmed Patel. To savour it more completely, I am posting it, with the original Arabic, and where it can be found.
Narrated Abu Huraira:
Allah's Messenger (ﷺ) said, "The strong is not the one who overcomes the people by his strength, but the strong is the one who controls himself while in anger."
حَدَّثَنَا عَبْدُ اللَّهِ بْنُ يُوسُفَ، أَخْبَرَنَا مَالِكٌ، عَنِ ابْنِ شِهَابٍ، عَنْ سَعِيدِ بْنِ الْمُسَيَّبِ، عَنْ أَبِي هُرَيْرَةَ ـ رضى الله عنه ـ أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " لَيْسَ الشَّدِيدُ بِالصُّرَعَةِ، إِنَّمَا الشَّدِيدُ الَّذِي يَمْلِكُ نَفْسَهُ عِنْدَ الْغَضَبِ ".
|| : Sahih al-Bukhari 6114
|| : Book 78, Hadith 141
|USC-MSA web (English) reference
|| : Vol. 8, Book 73, Hadith 135
| (deprecated numbering scheme)
May God, the Creator, Help us to restrain ourselves.