Please note that when preparing your herbal teas, all you need is a small amout of herb in your teapot and pour rolling hot water and steep it.
You don’t need to boil your herbal tea like regular tea, because there are many flavor nuances that can be discovered by adjusting the length of time when steeping herbal tea. Try both longer and shorter steeping times and see which one you prefer.
Enjoying herbal tea without any sweetener is also an acquired taste that will let your palate differentiate the original flavor nuance of each herb.
Adding a lot of sweetener to your tea might disguises the subtlety of the herbal tea flavor.