To quote IM Jeremy Silman:
What to do if a Young Player Gets Stuck After Achieving His/Her Goals
A young player that achieves his goal (in this case making master) but then stalls for a long period of time has, in most cases, moved on to other interests (school, sports, dating, other intellectual passions, etc.). For him to improve, he’ll need to study hard AND, most importantly, get jazzed by chess again. In other words, if he doesn’t find chess more than a fun pastime, then it’s doubtful that he’ll make another surge until some future time when he decides that’s what he wants to do.
Of course, there’s no doubt that a talented young player could be much stronger if he decided that this was a life priority, but I’ve seen the passion for chess vanish in many promising kids once that master rating was achieved and university beckoned. This might or might not change at some point in the future. If the newly minted young master does decide to go to another chess level, and he understands and embraces the need for hard work to achieve that goal, then his talent will easily take him there.
I should add that those young men who become grandmasters by their early teens are driven to do so. To them, chess is usually life itself – it’s all they can think of. They eat it, breathe it, and live it in their dreams. The young men and women you asked about don’t have that kind of obsession, and I think that’s usually a good thing!
To answer your original question, "How to enjoy the (local) chess tournaments?" Remember if you keep improving you're going to grow and become better. Eventually you'll be playing at a well-known state, or even national tournament.