I am glad to know you did
take consistent action and looked for further sources of support. SUpport groups are generally led by members, where they support each other since sharing same core issue-s and main goal around rehabilitation or growth. They use to be based on a set of principles guiding them like with AA or codependent anonymous.
On the other hand, group counseling is always directed by a mental health professional, ideally a counselor or psychotherapist with expertise in group work and the issues at the core of the work in those therapeutic groups.
These are two different types of support, one is psychotherapy / counseling work while the other is more about people sharing together without the professional assistance and commitment of group counseling.
My suggestion is for you to get into group therapy and once it ended to keep working on yourself through help from support groups. What many times appears as an issue is the lack of local professional group psychotherapy, what then leaves people no option but to limit group work to support groups.
It is never easy to work on our own healing and growth but it is necessary and worthy, that's why the group component is so important, otherwise people could so easily self-sabotage and neglect their own process.
I feel hopeful about you, please continue taking good care of yourself and building a healthy support system.
Thank you for your trust,