Just had an anxiety attack during an FL

Testing 3/7 and tried to take FL4 today. The first half felt rough, but I pushed through C/P and CARS. After the break, I sat down for B/B and just hit a wall. I couldn’t focus, the passages felt like a foreign language, and I ended up spiraling into a panic attack.

I’ve been scoring 509/510/511/515, so I know the logic is there, but today I just started bawling and couldn't breathe. To make it worse, my parents started asking about my score the second I stepped out to breathe, which made the guilt 10x worse. I’ve been studying full-time with no other commitments and I feel like such a failure right now. Has anyone else experienced this so close to their date? How do you come back from this?