Do you think he do that to make you improving yourself? Do you see any good intention from him?

Most of the times, the people who criticize me have their head above the clouds. Their criticisms mostly irrelevant and it's obvious they try to let me down. However, there was once a "different" girl. She was, like the others, criticized me a lot. However, I could see her good intentions and yes, her comments did improve me.

The good criticism will feel different. It's annoying, but it will make you think, "that makes sense," instead of make you feel down. That's how I feel when I heard her.