Our own personal beliefs can either elevate or destroy us. It only serve us well if it leads to our personal growth and expansion. A strong belief can shape the way you think and see yourself in different situations. If you believe that there is a higher power than you, then you will most likely act accordingly. You might want to hold back on doing something that might displease that higher authority. Likewise, if you believe that you are in-charge, then you will more likely to do as you please.
Beliefs that have been put upon when you’re young is very powerful. If you have been inculcated with the belief that you are bad with numbers, that will have an effect of how you perceive the subject when you grow up. And boy, that will be quite hard for you to handle in this current context.
So, be conscious of your own beliefs. Practise eliminating negative beliefs. Only empower good positive ones. They have a large affect on your future.