Great job, it's not very difficult, just a matter of spinning the cranks.
You may want to consider joining a bike club or finding a meetup group in your area so that you can meet other riders, maybe find one or two others that ride at your pace. If you're not comfortable turning cycling into a social sport, perhaps just find destinations x miles away to ride to. Or better yet, I presume you are doing an out and back ride, which to me would explain why it gets boring, try doing a loop so your entire ride is different.