For you others, allow me to interrupt your delicious isolation to perhaps remove some of the mistaken ideas that are keeping you from enjoying the benefits of a critique group.
Briefly put, a critique group exists for mutual review and evaluation of one another’s work in progress (WIP) so each member can get constructive comments on their work.
Excepting those who simply don’t have the time, most aspiring writers resist subjecting their work to critical review because of this truth: Writing is very personal. Consider how that affects these groups of writers:
Being a writer requires discipline, hard work, learning what you “should already know” as well as what you haven’t the foggiest about. Rejection is the writer’s reality but it’s greatly decreased when you’re getting feedback from others “in the trenches.”
Those who join live or online critique groups do so because they are willing to do what it takes to be the best writers they can be. Review by editors, beta readers, writing partners, and critique groups—all are geared to smooth the road and point us the right direction.
Local creative writing critique groups can be found by doing an online search for one in your area, such as Willamette Writers Critique Groups. If you're comfortable with an online critique group, doing a search such as "online writing critique groups" will give you a number of good possibilities.