Job interview went disastrous

Job interview went disastrous I recently graduated and after living in isolation for 3 months I've finally applied for a job. 1 week ago they called me in their office for face to face interview and surprisingly I did well. Fast forward today, they again organised an online interview. This time, I don't know what happened but it went disastrous. I've previously talked with HR and she knew I stutter so she mentioned it to the interviewer. My mom told me don't worry, what you're saying is clearly understandable but I know I fked up. They asked some basic questions and my mind went blank and I only answered a few. My heart is racing and anxiety is at worse.