Try anything, with my son i found that those silver drinks, can't think of the name, but those are good going down and back up... they come with a yellow straw you poke into them.
They make thoes little squeeze bottles of water flavors like coolaid an stuff thats what I used bcuz I hate plain water.
Vitamin water zero is my daily drink. It doesn't have artificial sweeteners it has stevia which is a plant. And it tastes better than water and is good for you. I also like coconut water but I milk and water makes you sick you might not like that because its kind of almost like a combo of the two. Lol
I never drink milk!!!! I get my calcium thru fruits, veggies, and chewable supplements!
I would maybe try squeezing 1 lemon and honey (raw honey if possible) info fresh cold glass of distilled water. If you don't like honey you can use sugar. Its a fresh homemade lemonade. Also cucumber water is pretty good on my tastebuds also :-)