Good to hear from you Bob! Express your concerns in the meetings. I'm sure you'll hear from some folks who have "been there and done that"... with the same concerns... and made it through sober! They'll have some good tips for you!
Bill W. (our Co-Founder) was sober 5 1/2 months when he went on a business trip to Akron, Ohio. His story is in the Big Book... Chapter 1, Bill's Story. He nearly lost his sobriety on the trip, but he took some actions... that eventually led to the founding of A.A. You might want to read and see what he did.
Also, Dr. Bob, our other Co-Founder's story is in the back of the book, "Dr. Bob's Nightmare". It ties in with Bill's Story, and you might want to check that out also.
Dr. Bob made a business trip to a convention, but he was unsuccessful at staying sober on his trip. I'm sure you'll find some good info in his story as well!
You really can do it -- sober... as long as you want sobriety more than you want to drink. If you want sobriety... then, simply do what the others have done to stay sober. It's that simple!
When I was new in AA I used everybody as a sponsor. I was a people watcher and I watched them. Some showed me what to do and the others showed me what not to do.
Even though I have a sponsor now, I still use everybody as a sponsor, watching them and learning from their successes and their failures.
Best wishes to you!