I am 18 Y.O. student with a year of credit history. TU 602, EQ 543, EX 574. I have a $515/mo. Auto Installment Loan (opened 7/2008) and a $500 CL Capital One (opened 6/07). I have missed one payment on the CC but have since paid it. I have 9 Inquiries also. I want a Amex Green or Gold Card, I recently applied and was declined for insufficient history. When or at what score should I reapply?