PTSD/panic attacks/anxiety attacks - currently in a 6-7 day panic attack that won

Hello. PTSD, panic attacks (current pAnic attack is 6 days and counting with 3 ER visits), insomnia, nightmares, general anxiety. Childhood physical and sexual abuse, adult physical abuse, emotional abuse, 15 year custody battle, 3X sexual assault, anorexia.

What I need most from you is help w panic attacks. Im doing everything I can. Im the sole income in my house I have to find a way to combat these. I do have a doc and a pretty hefty dose of Xanax and seroquel for anxiety and insomnia. But the panic sometimes breaks through with no trigger at all. Help?