I think it is good to be scared. I was, and often. The stakes are high. Not sure what brought you to this point but posting here takes guts and is a good step forward. My first few days were tough. Granted I was in rehab but one thing that helped me was having my day planned. I got up in the morning and knew what I was going to do that day. Just that day. I can make that. When you go to bed at night get a little smile on your face, you made it through, and do it all again. Those 24 hour periods will add up.