I would advise, for your health's sake
Don't rush too much, apply the brake
More speed, less haste is a mistake
So treat yourself to a quick break

Don't shout and scream - you'll just get hoarse
Swearing too will show you're coarse
Don't mount a rampant hobbyhorse
There is a better way, of course

I give advice, I hope I've shown
And rhymed to make some people groan
By using the odd homophone
I try to show how much I've grown

But is my own life sage and slow?
Do I wisely use all that I know?
Do my kindest words just ebb and flow?
I'm sad to say, the answer's "No"

Written for contest https://allpoetry.com/contest/2753940-Word-Bank-with-A-Twist--2---Read-the-Rules

Using the homophones in the word bank- 
Break, Brake
Coarse, Course
Groan, Grown
Know, No