My surgery is tomorrow, super nervous

 I have an anxiety disorder so I'm really really really nervous for surgery to the point where I feel sick and just feel like crying. I'm having 6 top teeth pulled and 12 mini implants screwed into my upper jaw and I'm really not looking forward to it. I'm getting put out with IV sedation but I'm still just really not excited because I've had two surgeries like this before and they sucked. To make matters worse I'm 8 hours away from home on the complete opposite end of the state, I had to fly here and I hate planes. I had a huge panic attack on the plane so now my body just feels exhausted and I'm so stressed. Any advice on how to wind down and stay calm? I'm not flying home until Wednesday but I wish I could just go home now. :(