I need some adivice about my life

.. I am younger and havent desided what to do with my life yet..
Im like most girls but I am very interested in being a singer... I love music and would like to make it as either a country singer or a christian singer... I have a great voice and landed many solos in chior... My whole Life I have been raised around musical people.. I want to live my dream and I dont know how ... My family doesnt think I could make it and should just give up on my dream and come back down to earth.. I want this so bad

what should I do?