To apply for affirmative asylum in the United States, you will need to follow these steps:

1. File Form I-589: You must complete and file Form I-589, Application for Asylum and for Withholding of Removal, with the U.S. Citizenship and Immigration Services (USCIS).

2. Provide supporting documents: You will need to provide evidence to support your claim for asylum. This may include documents such as affidavits, police reports, medical records, or other evidence that shows you have been persecuted or fear persecution in your home country.

3. Attend a biometric services appointment: You will need to attend a biometric services appointment to have your fingerprints, photograph, and signature taken for background checks.

4. Attend an asylum interview: You will need to attend an asylum interview with a USCIS officer. During the interview, you will be asked questions about your claim for asylum and your supporting documents.

5. Wait for a decision: After your interview, you will need to wait for a decision from USCIS. If your application is approved, you will be granted asylum and can apply for a green card after one year.