Any Substitute for Tea?  

yes take milk with ny chocolate powder

similar to tea, i can suggest you a few, but i am wondering why you don't want to have ACTUAL tea? is it caffeine-related? or you don't like the taste?

i hope my suggestions can suit you, since i'm not sure exactly what you're looking for.

try fresh mint leaves (or try half mint leaves and half gunpowder green tea). you can also try catnip....this is the same plant that some cats go hyper over. do not use 'cat grass', but actual 'cat nip' plant which is from the same family as mint, so the leaves look very similar.

lemon balm is another plant from the same family, if yo like something with a bit of a lemony flavor.

there are also hybrid plants such as lemon balm cat nip or lemon basil.

some people even drink basil 'juice'!

you can also use the juice of fresh sugar cane, ginger, lemon grass, (though i personally don't like the taste of lemon grass as a drink) or coconut water (the water, not the milk)

there are plenty of other tea-like herbs or extracts you may use, but they may be harder to find, depending on the part of the world you're in, such as rooibos (often called red tea though there is no tea in it....it comes from a bush and has absolutely no caffeine), white tea buds or tuocha (or beencha) which is a highly aromatic, earthy chinese concoction made of long-aged tea leaves.

hopefully somewhere in that list you might find what you need :)