Be prepared to refuse a drink. Contact a pastor or call the Crossroads Ministry Centre nearest you. Ask for prayer and other help as you need it. Remember God has a great love for you. Ask Him to lead you to other Christians to whom He has given a love and concern for you.
Crossroads is happy to help.
In fact, that's the whole reason we exist as a ministry. You may want to call us as you are reading this. Please give us the privilege of doing our best to help more.