I totally agree, the more experienced riders will give you constructive criticism and get you real comfortable riding with a group as it could be intimidating at first. There are some simple riding rules to keep you and everyone riding with you safe. Your riding confidence and riding level will quickly increase. But if you find yourself in a group that is not helping you and they make it seem like your in their way then find another club that will. This is not usually the case as most clubs welcome new riders.
I have been with a group or two that have dropped me like a bad habbit, in unfamiliar territory without ever looking back. It is a crappy feeling when that happens, especially being told about their "nobody gets dropped policy". You will get the feeling that you are a thorn in their side immediately.
Once you find a group it is the best thing!