If you have stopped drinking, maybe you are finding it difficult to sleep. The first thing to remember is that it does not help to worry about it. You may feel irritable and tired as a result of not sleeping, but it is unlikely to cause any long term harm. If you wake in the night, instead of worrying DO something, listen to the radio, read a book, maybe make a cup of weak tea or hot milk. Since our bodies go in cycles, you will eventually reach a more sleepy period.
Sleep is an excellent self-regulating system.
You will eventually sleep when the body knows it has to do so. Tips that some people find helpful For a while train yourself to get to bed at the same time each evening and out of bed at the same time each morning - preferably reasonably early. The body has approximately a twenty four hour clock. In the day-time the body temperature rises. At night-time it falls.