We need more facts. If you are subject to a permanent bar under 212a9C, then if you were in removal proceedings, you could seek Cancellation of Removal for Non LPRs. Please coordinate a consultation with an experienced immigration lawyer.
Best of luck.
Verdin Law Firm, LLC
If you under the permanent bar, you must remain outside the U.S. for ten years before you can apply for a waiver.
Better doublecheck whether you are really under the permanent bar. Consult an immigration attorney.