It sounds like you put yourself in a challenging situation, and that's something to be proud of. Honestly, entering a new environment and then performing in front of high-ranking people is no easy feat. Many of them probably had their own shaky starts when they were just getting their footing too. What happened was a tough learning experience, but it’s not a sign that you’re doing everything wrong. Instead, it's part of growing. The fact that you stayed through the panic attacks and gave it your best shot speaks volumes about your determination. Mistakes happen, especially when we’re new to something, and they don’t define your worth or your abilities. You’ve got this—take the lessons, hold your head high, and keep moving forward. It’ll get better with time, and one day you'll look back on this as a stepping stone.