Bigger competitions can be intimidating, but PLEASE don't be intimidated. We're fortunate in our sport to have such a great group of people representing airguns and they're the nicest bunch that I've come across. So if you're unsure about going to Pyramyd, Crosman, Nationals, Cajun Classic, etc. I would sincerely encourage you to just do it (pardon the Nike reference...)
Each person I have shot with I have learned something from, even if it's something not to do. The number of stories that we have created seems to be endless and it's always fun to reminisce when you're shooting with someone again.
Big comps are also a great time to try other equipment. For example, I have a bucket with a plastic "tractor seat" on top. Typically someone sees it for the first time and sort of laughs, but I get up and have them try it and their smirk changes to a look of envy. And there's no limit on this. If you didn't have equipment there is typically someone ready and willing to share their equipment with you.
Look, we're in this sport because we love it and we are happy to share our addiction in any way that we can. So please don't think that you're not "good enough" for a match and get out there and have fun.