Q: “I’m the only person here that my boss criticizes. I never hear him say anything negative to anyone else. How do I tell him to quit picking on me?”
A: Here’s the good news — your boss doesn’t criticize people in public. More good news — the evidence suggests that your boss doesn’t tell other people when you mess up.
You want more good news? Your boss wants you to reach your potential without being compared to co-workers.
Instead of telling him to quit picking on you, tell him that you appreciate the fact that he keeps your faults (and everyone else’s) to himself. Ask him to provide specific guidance on areas that you can improve and how to proceed.