My grandmother applied for my father's green card in 2002 and at the time, a petition was filed for me (and I was under 21 at the time). His application has only been processed now and my name has been cancelled because I am now 25. Is there anything we can do to push a petition for me (or does he have to use his green card to then apply for me from scratch - a process that will take over 7 years)? Would it be faster if I applied for a master's there?