The world is full of all kinds of sayings like "an apple a day keeps the doctor away" or "you are what you eat" and many of them have a measure of truth to them. Yet there is one phrase that rings truer than most. When you hear, "you are what you believe", that phrase is simply stating the truth. How people feel about themselves is directly reflected in who they are. If you have trouble with your self-esteem and how you feel about yourself, the problem most likely lies in some kind of fear or negative idea you are clinging to. No one wants to feel badly, have fears or embrace negativity, but the human mind can be a mysterious thing. Luckily, the human mind is also a very powerful thing.
When you feel that you are what you believe and you genuinely want to change that, you need to find the fire and strength within to you make that change happen. You need to know what you want to feel and who you want to be in order to make it happen.