It’s okay. You’re going to be okay. Just breathe. Breathe, and remind yourself of all the times in the past you felt this scared. All of the times you felt this anxious and this overwhelmed. All of the times you felt this level of pain.
I wish this fell into the "so true" category, but unfortunately I find that the truth sometimes. no most times, comes out way too late and the ones who lie, never apologize for or can repair the heartbreaking, life destroying lies they tell.