A Psychologist is essential in this case. Psychiatrist cant possible help with behaviour of your parents and your emotional turmoil. Psychiatrist has no role here. A Psychologist is required. You need counselling on Self Esteem and your parents need counselling on parenting skills. Psychiatrist medicine will not work here. You need to have a conversation with a distinct focus on your emotional health and therapy sessions to counter negative feedback.

Convince your parents to meet a psychiatrist. That way they can be spoken to as to how to handle things. Atleast talk to a counselor in your school if you have one.