Have you ever thought about the fact that shouting is commanded in Scripture?
Psalm 66:1: "Shout for joy to God, all the earth..."
Shouting is a very undignified thing to do. Important people don't shout. Prideful people let others do the shouting.
What or who do you shout for? A sports team? In anger? To get someone's attention?
Shout in joy for God.