I have a terrible phobia of flying, and we are flying to Australia on Friday (sister-in-law is getting married).

My doctor has prescribed me diazapam to calm my on the flight and advised me to take 3 2mg tablets. My concern is A) they won't work and B) I don't know what to do for my second dose?

Do I take 3 tablets every 4hrs or is that dangerous?

Also, I understand mixing it with alcohol is dangerous but would a sip of beer allow me to sleep or is it 100% don't do.

My phobia is something I've had 2 lots of hypnotherapy with it and I am currently receiving CBT for it.

I just don't know how I am going to do 17hrs. I cannot sleep at the moment and I am living in constant dread.