I don't drink tea, insipid, tried it once that was enough. ugh! Having said that, when I was in Hong Kong our host persuaded me to try some of his Jasmine tea. I found it strangely pleasant but when I got back to England and bought some Jasmine tea over here, one sip and ugh. I do however drink (some) herbal teas but not as much as I used to. Nowadays, the occasional peppermint tea is enough and even then preferably fresh peppermint, of which there are also varieties, from the garden or for shop bought my preferred brand, Pompadour.
Enough about my credentials, there are more than 3,000 varieties of tea so I suggest the starting point when giving up sugar in tea is to consider whether the variety of tea that you have been drinking would be to your taste were it not for the sugar. Apparently not. So I'd suggest finding a tea you like and then you won't need the sugar.
Tea-bags are convenient but rarely is the tea itself of high quality. Some useful info:
http://www.dailymail.co.uk/femail/article-445327/The-good-brew-guide.htmlHaving said that, kicking a sugar-habit can require a lot of will-power, depending upon your psychological state. Consumption of sugar (in all its forms) on a regular basis inflates your energy levels artificially. When you get to the stage at which you cannot manage whenever your energy levels drop to their natural state for you then you'll need a regular fix to keep yourself high. It's like topping up a car with petrol/diesel whenever the fuel tank needle shows any sign of moving downwards.
The same principle applies to tea and coffee: caffeine is a stimulant. Stimulating the experience of a high can be a pleasurable activity: your body isn't comfortable but goes along with what your mind wants so your physical systems become accommodating. Having become accustomed to the feelings, it can be mentally easier to carry on regardless and adjust to an erroneous set of circumstances rather than resist the temptation and experience the process of adjusting to a non-addictive state.
When I feel the need to kick a habit involving some sort of food, I classify the ingredient/food as poison. For me, thinking I am poisoning myself is enough of a deterrent.
Habit-forming takes about 3 days. Habit breaking takes about 21 days, 14 if you put your mind to it. And a much shorter period of time if you use ways and means that suit your temperament.