Jeni- I'm at 9 weeks and have been having the same thoughts. It's frustrating, but I keep reminding myself that, though it seems like a REALLY long time, I am still in early recovery. I believe it will get better.
I have the same Friday night issue, and I too make Friday night a mandatory meeting night, which has really helped.
Reach out to others, got to extra meetings, read SR, and focus on how good you will feel when you get to Monday and are that much closer to 60 days!