What do you think of my idea to yell at my colleagues?
Why do you want to yell at them?
I hate my life and I want to go on a rant
You shouldn't yell at people just because you're having a bad day. They will not help you when you need help.
That's not all I will do, I will also send them threatening emails and will make sure they get fired for talking to customers like that.
Yelling is not helpful when you have an issue to address. Remaining calm will better allow people to hear you.