Just to give you some reassurance; this condition doesn't last forever.
Once you have your anxiety under control, the hormones that cause this early morning anxiety will rebalance themselves and the early morning anxiety will disappear.

A few months ago I was waking in the early hours with extreme panic. I've experienced it before and knew what it was but it still wasn't pleasant. I had to get up early and go for long walks until the panic eased.

I've since got my anxiety under control with the help of CBT exercises and finally I can wake up in the morning feeling normal.