After a good 40 years of figuring I could "go it alone" I finally had to seek out support. The group I eventualy found literally changed my life. IMHO no matter how much you think you may know about being trans, being a room full of plain ole ordinary boring folks, just like you, gives a totally different perspective. By the second meeting I knew I absolutely needed to be there. About all the shame I harbored over being trans is gone. Still some guilt, but that is a L-O-N-G story and complicated after a 56 year life.
I often wish we had mettings more than once a month. However, I do know if I just need to vent or to get a desperately needed opinion most are just a phone call away, or a posting on the group site.
My wife, as well as me, was a bit nervous since about everone in the group were either, post-op, living full time, or going to really soon. Me? I just knew since the age of 5 I was trans but settled on being "normal" with a difference here or there.
Not all experiences are the same. Groups do vary a LOT i have been told.If the one you are going to does not feel right, do it give it some time, but also keep options open for finding others. Mine are extremely limited and I have been extremely blessed. I drive 90 miles to the only one closest to me. I haven't missed a meeting in over 2 years