"Talk to yourself like someone you love," Brene Brown.
Often in therapy we talk about the inner voice and how it criticizes, blames and would not always be our friend. It can be easier to speak to a friend, child, or family member in a supportive manner when they make mistakes, feel down, or struggle. Think of times in your life when you needed support from your inner voice, but instead you told yourself you looked fat, were not worthy or good enough.
Spend a moment with your inner voice and tell that younger you what you needed to hear instead. For example, "That was a tough time, but you will make it through." Tell yourself you can be brave, imperfect, and are worthy of love and belonging. Give yourself permission to be happy and fulfill your goals and dreams. Connect your relationships when they are disconnected. Tell the critic inside of your head to stop disrespecting you. You are not dumb or stupid. Be kind to you. This is a practice. Keep practicing.