When your in school, you need to look into a 4H group. They are great places to meet people your age who are interested in horses.
Also look into local clubs. I know just in our little county we have a group that is mostly trail riders and there is another club that is more into the rodeo/cattle horse work.
I'm sure if you find some people your own age or those with interests the same as yours, your interest in your horse will improve.
Oh yes, and welcome to the forum