Day 1 - What do I do to get through the night?

I have drank every day from the time I get home from work until I pass out for bed for the last 13 years. I'm done. I want to quit. This is the day but it is almost 6:00PM here and I am actually beginning to sweat just thinking about getting through the night. I thought about taking a sleep aid and just going to bed early but that is the same thing and I want to be able to get through a night with no alcohol or pharmacy help. What was your first night like? What can I do?