Whatever your art is, it’s probably solitary. It’s just you and the canvas, you and the typewriter, and the rest of the world is an afterthought. Creative work is a lonely pursuit.
I’m not a big fan of writer’s groups — in my experience many are still in the “aspiring” stage — but I certainly recommend building a network of pros to bump you along.
One may encourage me. One may crack the whip over my back. One may email me just to remind me not to waste time reading my email. One may swap stories with me over coffee. All of these people keep me on task and away from the rabbit holes.