Welcome.
I'm over in Caledonia county and I'm just a rookie with GMRS in general.
Sadly, we don't have much in the way of repeaters, or even GMRS chatter here as the terrain isn't conductive to using these radios more than a relatively short distance. I can chat on a repeater in Monroe, NH about 14 miles away with my 20w mobile, though with a fair amount of noise.
I don't know of any local training or GMRS groups, after searching. I've done my learning online with videos and forums.
Jim