Just because you’ve tried green tea before and didn’t like it; remember there are many flavors of green tea. Some teas have strong taste, gunpowder and sencha, and other are more subtle, dragon well and white monkey. Green tea can also be infused with flavors, mint, citron and peppermint.
There are also different families of tea: Black, White, Green and Red(Rooibos) and herbal
Also all tea has caffeine unless processed, except for herbal. A quick way to remove the caffeine is to brew the tea for 20-30 seconds then throw the water out. then steep for 3 mins for green and white, 5-7 for others.