I think you should see a different therapist. I'm sorry about your parents being cruel to you. Rebirth as a new human being is not guaranteed - it is just a belief and we should not make decisions completely based on beliefs.

Antidepressants does not damage the brain in a way you describe. They may have a negative impact on liver and kidneys though.

It seems like you have had some developmental disorder. I too feel like that sometimes. Aspergers or Autism for an example.

There are wonderful novels and movies and so many literature that can expand the spectrum of your emotions and improve perception on life.

I too would love it if I can create music. But I'm not so good at it. But I'm good at painting. Now I can do oil painting; but it has been a long while since I have put any paint on a canvas.