16, but 12 is really really young.
Try find a relative you can stay with.
Try find a relative you can stay with.
How Old Do You Have To Be To Move Out Of Home In Australia? Is There A "Legal" Age?
I think it all depends on where you plan to move. If you move to the United States you can be 18 to be on your own and rent out a apartment and stuff.
You have to be 16 in Australia to move out of home...But it sounds like you should try and find a relative or responsible adult that cares about you to support you if the situation is really that bad!