Don't push yourself too hard.
You should slow down.
Stay calm, and do your best.
Don't work too hard.
You had better not work too hard.
Don't do the job just any old way.
Don't meddle in somebody else's business.
Don't do a half-assed job.
Stop shooting the breeze and get to work!
Do your best and don't be nervous.
You're working hard, eh. But don't push yourself too hard.
Don't push yourself too hard.
You should slow down.
Stay calm, and do your best.
You had better not work too hard.
Don't work too hard.
Don't meddle in somebody else's business.
Don't do the job just any old way.
Don't do a half-assed job.
Stop fooling around and help me!
Do your best and don't be nervous.
You're working hard, eh. But don't push yourself too hard.
Stop shooting the breeze and get to work!