I often talk about building sober muscles.
I'm not sure avoiding the world for a few weeks will do that on its own.
I went out to things, but I made sure they were not things that involved alcohol - picnics, coffee dates, movies, walks, hobbies , sports.
I always had an escape plan just in case alcohol suddenly became involved or the situation became overwhelming for me...
In that way I got used to socialising sober, and my resolve to stay sober, and prefer being that way, got a little more permanent
Now I can go anywhere and do anything and I know I'll stay sober, but I had to work up to that.
D