I think in general it's better to share less than more when it comes to quitting stuff. This is my general opinion.
I'm a believer in walking the walk and not talking the talk. If you quit smoking don't smoke cigarettes. You don't really need to talk about it though. You quit drinking don't drink alcohol. Again no big need to blather on and on about it. Lose weight? Take the compliments and feel better about yourself but once again we don't need to talk about it, people can see it.
I'm not saying you did all of these things I'm just sharing how I feel in general. No bigger turnoff than holier than thou people.