God makes Dreams Come True, keep following Him and like your Dad says "Don't let anyone talk you out of your dreams" One thing I learned too about sharing my dreams is that we do have to be careful who we share them with, not everybody will leap for joy with us, in fact some may try to talk you out of it,
See Yourself teaching 27 children, weather they be 27 spiritual children that you gave birth to by leading them to the Lord and having a classroom of 27 children... your dream is also to teach right?
Jesus is the Dream maker and Dream Fulfiller... look to/for Him not to/for a man