B2 to F1 change of status can take several months, and 6–12 months is not unusual depending on the service center. The harder issue is timing: you generally cannot start studying in F1 status until USCIS approves the change of status. If your B2 I-94 expires while the I-539 is pending, you are usually in a period of authorized stay, but you are not in F1 status yet. Check your receipt notice service center and compare it with the USCIS I-539 processing-time page - Attorney Rashmi Bishnoi (All information shared here is for general educational purposes only. It does not constitute legal advice or create an attorney - client relationship. Your situation may require fact-specific guidance. For personalized legal advice, please consult an immigration attorney directly.)

I applied last year and sent my RFE response last month. I’m still waiting, and this whole process has been really stressful. I’m honestly scared about the result.