I've run into this with support groups. In my experience, they're good for clarifying the problem, but it's up to you to come up with the solution.

Those who have figured it out won't be there, because they'll have moved on from the group. If you're lucky, you'll meet one or two who are on the verge of a breakthrough. Observe them closely while you have the chance. Take note of those who leave just when they seem to be doing really well.

If you're really lucky, they'll say goodbye and share what they've discovered. But there are things you can't understand or appreciate until you figure them out for yourself.

If you leave at the right time, you won't regret having attended. I look back on it as a necessary phase.

(I've observed a similar pattern in organized religion.)