Hi Sue,
Welcome! I’m a high functioning alcoholic myself too, including the job, the exercise, you know the drill. I found this hard as it was always simple to convince me I could drink, no harm done.
I realised recently that this is only going to work if I focus on not drinking directly. This is different to not drinking because it’s lockdown, or because of anything else. I won’t drink because I don’t drink!
So make sure you actively work on sobriety, plenty of help here and many other resources I’m sure you ll hear about!
Nice to have you here!
Mr P