Your "inner critic" is the part of you that self-sabotages. This part of you was created when you were a young child. You internalize what you were told, what you heard and what you witnessed from your authority figures as a child (parents, teachers, coaches, doctors, religious leaders, grandparents, peers, etc). This conditioning becomes the voice of your inner critic for the rest of your life, unknowingly. This voice is not who you really are. It's only what you learned and what got programmed into your unconscious mind. Your unconscious mind drives about 90% of your choices in life.