I just took 20mg of diazepam and usually it makes me go right to sleep. Instead I am anxious and?

Srrr taught some good techniques for coping.
Do this in addition. Just to make sure.
Do something involving thinking and your hands to distract you.
They are making so many new types of arts/crafts with new materials and you don't need experience. Remember Shrink Wrap? You can make some pretty cool jewelry. Anything to do the mind-hand thing. Get past the first hour and you should have broken the cycle.
FYI... Don't start it when you are in a cycle. You won't be able to figure it out. Plan ahead and learn how to do it on a good day. Keep materials together in a place convenient so you can just grab it. As soon as you feel it coming on, get started.
If you do follow up on this, I'd appreciate follow up. It's great for oncoming pain, anxiety attacks and when all else fails and you know you are not going to sleep.
I have never created anything. Ever! I found a site by Tim Holtz. There is something for everyone. I found that even playing with colors will relax my mind. If I make something... Great!
The college kids have taken up coloring books. Now they make elaborate coloring for adults. The kids find it's an easy way to get through the stress of school. Much healthier then having them do drugs!
Pinterest has free downloads so all you need are pens/pencils.
However, with pain and panic you WANT to think to distract you. Distraction is a recognizable treatment for pain. I used to work for 12 hours even though I got paid for 8! It was better for me than pills. Plus I went home exhausted and slept well.
The same principle applies to anxiety and panic attacks.