The judge probably marked you eligible for a restricted permit. If so, and if you are otherwise eligible (if you would have a valid driver's license if it weren't for this DUI conviction) and you are in compliance with VASAP, you can go back to the court where you were convicted. Go to the Clerk's Office and ask for an application for restricted permit. Usually the deputy clerk will tell you everything you need to do to apply for and receive a restricted permit, but if not you can probably pull a local attorney aside and ask for some guidance.
If the judge did not mark you eligible for a restricted permit, you may be able to petition the court to reopen your case and declare you eligible.
Either way, your quickest route starts at the clerk's office and your easiest route starts with a competent local defense attorney.
Best of luck.
Sign up to receive a 3-part series of useful information and legal advice about DUIs.