What am I doing wrong?

To a certain extent, depending on type of tea, other ingredients and brand. The 2 teas I tried by Allegro seem to taste virtually the same. Seems like every tea that I drink that has chamomile, that tends to overwhelm the tea.

As for your Pomegranate tea, it could be the last bit that you had for whatever reason went bad, maybe even before you bought it. It shouldn’t happen Ideally, but sometimes it does.

Check that it isn’t just you who thinks so. A couple years ago I’ve picked some bacteria that screwed up my tasting buds making everything I had taste bitter for some weeks.