ALLAH is Creator, Cherisher and Sustainer all the worlds. ALLAH neither begets nor is born. Prophet Muhammad (peace be upon him) is HIS Messanger. Al-Quran is HIS Message. Islam is the way of life to achieve Excellence Here and Hereafter.
Do not get angry!
Prophet Muhammad s.a.w. advised "Do not get angry! Do not get angry!". He repeated that three times!