I just want to add one thing re the Al-Anon and people who go to several meetings a week after many years.
Many people go to that many meetings because they have experience, strength, and hope to share with the newcomer. If everyone quit going to Al-Anon (or to AA) once they got better, who would be there to guide the new people, who come in feeling desperate and lost?
There are also people who "up" the number of meetings when life gets very tough and they need extra doses of serenity. I know I do.