Most Helpful Guy
Of course, but only you can give consent to their criticism; thus, don't0
Most Helpful Girl
Depends on the person. Some people are silently jealous while others are more aggressive about it, for sure.
If they're aggressive then yeah, they'll want to drag you down with them until your confidence and self-esteem is just as shitty as theirs. Misery loves company, and they usually just project their shitty feelings onto their victims.0