Welcome Alice - you've come to a great place.
I'd suggest reading a lot of posts here and seeing what others are doing to stay sober. Depending on your drinking history, it's wise to consider medical help for detoxing. Take it one day at a time, or one hour at a time if you have to - just focus on getting through that day without a drink and then worry about tomorrow when it gets here.
If we can do it, you can too! We all know what those first days and weeks are like - it really does get better......