I can't help you much I am only on day five and feel I may be in your shoes by day nine.
But what I do is I just add a little more of the one I like better. I like lemon better than the maple so I add a little more lemon to twist the taste, Also I notice that if I load up on water the lemonade become repulsive. One last reccomedation, maybe you could try changing the temp. in whch you drink it.
I really hope this can help you, and if you can help me in any way that would be very helpful. Congrats though you are definitely an inspiration to me since I am only half way there. You can do it.