i guess you cant change this everything has to happen at its own time, but but you can find another ways to braek in to the acting scene, i remember bruce lee had problems with  success in america and went back to asia  and had success there and the Americans went to look for him, i dont mean you have to move somewhere else you just have to find another way to attract people, sorry if this isnt helpful 

If you love acting, that means you're already doing it someplace. Keep doing that. When you get older, go to Hong Kong or Taiwan. You should have an easier time finding work there...

You could also try writing letters to production companies. Sometimes movie makers are looking for child actors.

Do what you love!