When trying to get a record restriction it would not hurt to hire a trained professional. Usually you have to contact the office that prosecuted you and convince them to sign the records restriction forms aka expungement forms. This link should help! http://www.gjp.org/programs/legal-assistance/criminal-records/faqs-expungements/
The laws in Georgia has recently changed as it relates to a person removing things from a criminal record. I don't believe your conviction would be eligible for removal under the new law. However, an executive pardon is an option.