5 ways Islamists or Muslims can cure themselves of 'Anger'

Ali ibn Abi Taalib (may Allaah be pleased with him) said: It may be known whether a person is really patient at the time of anger. And he used to say that the beginning of anger is madness and the end of it is regret, and anger cannot be justified by offering a humble apology. Calamities may come because of anger. It was said to al-Shu’bi: Why is a person who is quick to get angry also quick to calm down, and the one who is slow to get angry is slow to clam down. He said: Because anger is like fire; that which is easier to start is easier to extinguish. 
There are means of soothing anger if it arises, which will enable the one who does them to cure himself of anger and its effects.
They include:

1 – Remembering Allaah, which should make him fear Him; this fear will motivate him to obey Him, so he will resume his good manners, at which point his anger will fade.
Allaah says (interpretation of the meaning):
“And remember your Lord when you forget”
[al-Kahf 18:24]
‘Ikrimah said: i.e., when you get angry. And Allaah says (interpretation of the meaning):
“And if an evil whisper comes to you from Shaytaan (Satan), then seek refuge with Allaah”
[al-A’raaf 7:200]
i.e., if the Shaytaan makes you angry – then seek refuge with Allaah, for He is the All-Hearer, All-Knower – i.e., He hears the ignorance of the ignorant and He knows the things that take anger away from you.
One of the wise men said: Whoever remembers the power of Allaah will not use his own power to wrong the slaves of Allaah. ‘Abd-Allaah ibn Muslim ibn Muhaarib said to Haroon al-Rasheed: “O Ameer al-Mu’mineen, I ask You by the One before Whom you are more insignificant than I am before you, and by the One Who has more power to punish you than you have to punish me: why don’t you let me off?” So he left him off, because he had reminded him of the power and might of Allaah.

2 – He should get out of the situation he is in, so that his anger will dissipate because of his moving away from that situation. 
It was narrated that Abu Dharr said: The Messenger of Allaah (peace and blessings of Allaah be upon him) said to us: “If one of you gets angry when he is standing, let him sit down, and if that does not take away his anger, then let him lie down.” Narrated by Abu Dawood, 4782; classed as saheeh by al-Albaani in Saheeh Abi Dawood.

3 – He should remember what anger leads to of regret and the need to apologize. 
One of the literary figures said: Beware of the pride of anger, for it leads to the humiliation of apology.
4 – Be tolerant and forgive people
He should remember the reward for forgiving others and of being tolerant, so he should force himself to overcome his anger, seeking that reward and so as to avoid deserving blame and punishment.

5 – People love and respect you more when you are patient
He should remind himself of the way that people like and respect him, and he should not risk losing that because of his anger, so that people change their minds about him. He should know that by forgiving people he will only increase the respect with which they view him.
As the Messenger of Allaah (peace and blessings of Allaah be upon him) said: “Allaah will not increase a person who forgives others except in honour.” Narrated by Muslim, 2588.
And one of the poets said:
“It is not a trait of nobility to be swift in seeking revenge. And generosity does not lead to a loss of blessings.”