Anger in Proverbs:
Proverbs 12:16 (CEV)
Losing your temper is foolish;
ignoring an insult is smart.
Proverbs 14:17 (NCV)
Someone with a quick temper does foolish things,
but someone with understanding remains calm.
Proverbs 14:29 (GW)
A person of great understanding is patient,
but a short temper is the height of stupidity.
NJB 29 Mastery of temper is high proof of intelligence,
Proverbs 15:1 (NKJV)
A soft answer turns away wrath, But a harsh word stirs up anger.
Proverbs 15:18 (NET)
A quick-tempered person stirs up dissension,
but one who is slow to anger calms a quarrel.
Proverbs 16:32 (NKJV)
He who is slow to anger is better than the mighty,
And he who rules his spirit than he who takes a city.
Proverbs 19:3 (NIrV)
A man’s own foolish acts destroy his life.
But his heart is angry with the Lord.
Proverbs 19:11 (GNB)
If you are sensible, you will control your temper. When someone wrongs you, it is a great virtue to ignore it.
Proverbs 19:19 (GNB)
If someone has a hot temper, let him take the consequences. If you get him out of trouble once, you will have to do it again.
Proverbs 20:2 (The Message)
Quick-tempered leaders are like mad dogs—
cross them and they bite your head off.
Proverbs 21:14 (The Message)
A quietly given gift soothes an irritable person;
a heartfelt present cools a hot temper.
Proverbs 22:24–25 (GNB)
Don’t make friends with people who have hot, violent tempers. You might learn their habits and not be able to change.
Proverbs 29:22 (GNB)
People with quick tempers cause a lot of quarreling and trouble.
Proverbs 3:31–32 (NET)
Do not envy a violent man,
and do not choose to imitate any of his ways;
for one who goes astray is an abomination to the Lord,
but he reveals his intimate counsel to the upright.
You can’t shake hands with a clenched fist .© Indira Gandhi
Very good reliable advice; not much I could add to that. If you want a happy life and an enjoyable circle of friends follow these sign posts along your journey through life.