If you keep doing what you’ve always done, you’ll keep getting the results you’ve always gotten.
If you want to get different or 'better' results, you have to do different things. And you have to do those things before you feel ready.
Your body takes cues about your own identity based on your actions. Your mind is always watching what you do and you can change your mind with new behaviors; not the reverse.
Once you act differently, your mind will take notice and it will actually change your self-image.