"I feel like I'm missing something."
You need to find your niche. I've known a lot of flight simmers, and for every one there's a particular aspect of the hobby that most appeals to them. I know combat fliers, VATSIM devotees, bush pilots, tubeliner drivers, type collectors, scenery collectors, simulator collectors, cockpit builders . . . You get the idea. You should try as many different aspects of the hobby as you can to find the one that works for you.
GA can be boring - there were times back when I used to fly for real that I admit to having been bored. These days, in the sim, I fly mostly A2A GA aircraft in real weather, and don't use the GPS. I find that engine and system management, weather awareness and map-and-compass and radio navigation fill the en route time admirably.