OPT is not what you think every one can get. I had experience with opt denied in 2002 and I finally survived.
Basically To be eligible to apply for OPT, you must: (1) have been in full-time student status for at least one academic year by the requested start date of your OPT, (2) be maintaining valid F-1 status at the time of the application, and (3) have not used OPT at the same degree level previously.
Your case you are done.