There is an over the counter medication called melatonin which isn't addictive and doesn't cause problems. Many people feel it helps them sleep. There are also things which you could learn in therapy about dealing with anxiety through relaxation, self talk and meditation or prayer whichever works best for you. You also need to look at sleep ecology. You can google that on the internet and find out some suggestions that make sleep more restful.
Again, talking to a counselor might help a lot with your anxiety.
Connie