Citizenship

I appied for derivative citzenship through my grandfather( my father is also a US citizen but he left the states when he was 14) Uscis determined that the documents I submitted with the application were insufficient because they did not support 5 years of physical presence in the United States of my grandfather. However my older sister submitted the same form two years ago with the same evidence and obtained her citizenship without any problem. In the meanwhile after the notice of denial arrived i have"aged out". The question is :can i file a motion of appal i-290b form or is it useless since i reached the age of 18.