I think you should have a look around for some barrel racing competitions in your area, and just have fun! It will give you something specific to train for, and that once in a while you can get to ride in a new place with different horses.
I would also recommend going a little more into jumping as well. Set up a few different and interesting jumps in the field or arena and have fun with those. If there is ever a small training show in your area, enter a few classes just for fun. Your horse doesn't have to be excellent, as long as it goes over the jumps and takes an interest in it.
Then with the issue about doing the same thing everyday, make little challenges for yourself. Time yourself how long it takes you to get from one place to another and see if you can beat that time. Weave between trees or invite some friends over to ride with you. Maybe if it is possible, would you be allowed to go outriding in a new area or on someone else's plot? Explore your options. Learn a new discipline! Like roping or try your hand at dressage. Go wild!