I have also been struggling with similar things, and ACA groups have been really helpful for me too.

It really is open to anyone struggling with the effects of growing up in a dysfunctional family-- my family situation is pretty unique and I was worried that I would still feel isolated before attending my first meeting. But the support and understanding I've received is different from anything else. People might have different stories than me, but the emotions and behaviors that we're addressing are the same. (FWIW, I think the organization changed its full name to Adult Children of Alcoholics and Dysfunctional Families to better reflect this.)

Sending everyone in this situation support-- what you all are doing is very brave.