I think the person it is critical we admit it to is ourselves.
Generally "announcements" put everyone in the awkward position of having to react. To say or do something on the spot, and that can lead to a lot of mischief. Information that is tricky to absorb, unless it is critical that it be presented in full and immediately, is sometimes best revealed in the context of real life.
I didn't announce to any of my family members other than husband and kids that I was quitting, because it immediately impacted them. My one sister whom I spoke to all the time I also told point blank. Others never were told I was an addict/alcoholic. When I am with them and am offered a drink, I turn it down. If they ask if I've stopped drinking I will say yes, but there was really no point in ever sitting them down and confessing and explaining anything.