I'm really pleased that you have come down from the anxiety now. It's awful and I completely understand how the rational thoughts don't stand a chance when in the throes of anxiety taking control. The physical feeling of it is horrendous and exhausting too. So I really do get it.
Is the counselling with someone who understands OCD or a regular counsellor? If the latter, you need to push for the former.
I would add my voice to the others who are saying that, at the moment, your anxiety, and the rules you have created around this, is a greater threat to your daughter's health and wellbeing than any accidental breaking of those rules is going to be.
I know you've explained that it's the rule breaking rather than the alcohol that is bothering you but, as you asked earlier, yes, I did give my children food cooked with alcohol in it at your daughter's age. Homemade risottos, bolognese sauces, steak and ale pies, Christmas pudding, rum butter, brandy sauce...
I understand the origins of your anxiety; both my exh's parents are alcoholics and, whilst he doesn't have anxiety around it, he chooses not to drink. But he does cook with alcohol and does feed the children that food.