Question: what is the average height for a 15 year old asian girl?
Answer: No. 5′4″ is the average for most women across the world; in the Asian world I would say you are about the median so don't worry, size isn't everything. In any case, at the age of 15, you have yet to go through your final growth spurt, so by the age of 18 (when most people stop growing) you could be 5′6″.