For your age, you are doing well. Make sure that the weight loss is gradual, not sudden or it will all come back on. Even though you enjoy working out this much, you must however take at least ONE day off from your routine. And your maximum output should not exceed 2 hours per effort, i.e. keep each days workout to a max of 2 hours.
What you can do is to bring about new challenges in your routine to make it livelier. Once or twice a week, you can actually think of replacing an activity with any slow movement exercises like free flowing yoga or a spot of tai chi. These will give you and your body an all round development that will enhance your sense of feeling-good!