This is not an easy game for most people. It is at least as hard as golf, where a lot of people work for years trying to shoot in the 80's. Some lucky few will shoot in the 70's within a year or so of taking up the game without seeming to have to try that hard, but most people will struggle to shoot in the '80's, and quite a few never get there.
The thing about archery, or golf, for that matter, is to not measure yourself against anyone else or some arbitrary standard. It's difficult, because you look at someone else you know, or read something in a book, and think that after the amount of time you've put in, you should be able to put all your arrows in a 6" circle at 20 yards or be able to consistently hit pine cones at a similar distance.
But if you set those goals for yourself, you won't ever really enjoy archery. The enjoyment of archery comes from experiencing each shot, whether you're alone or in the company of like-minded others. If you do that, you will progress, at your own rate, and after a few years, you might look back and say "Wow! I couldn't do that shot a few years ago, and now I take it for granted!"