Xanax addiction resulting in insomnia?

Absolutely. That is EXACTLY what xanax will do. The protracted withdrawals can include anxiety and horrid insomnia. It can take six months, sometimes a year or three, for the brain to fully recover from the xanax. You took it when you were young and developing, and it is very possible that your emotional and even physical development was effected by this, and you may find you have mental/emotional issues as an adult for years to come. I hate to say it, but you really screwed yourself by taking so much xanax, especially while you were so young.

Taking ambien is probably the worst think you could possibly do. The withdrawals and recovery from ambien is the same as xanax, except the insomnia is even worse. To some extant the ambien will slow the healing process because it does the same thing to the brain that xanax does.

If you you want to get over the insomnia, you can not take any benzos, nor can you take ambien. You have to give your brain time to recover and heal, and that can take a very long long time.

Find a doctor that understands protracted withdrawals and recovery from xanax and ambien usage. They should be able to help you heal and recover.

Absolutely, your brain produces chemicals that aid in sleep and when your taking medication that make these chemicals for long periods of time your brain no longer produces these chemicals because it doesn't need to since you're getting them from somewhere else so once you're no longer taking that medication you are left without the chemicals you need for sleep which lead to insomnia.