This gunpowder green tea is good for beginners or the lazy because it’s mild and exceptionally tolerant of steeping too long, or in too hot water. Never bitter.
If you already like green teas, try some Taiwanese 10% (nearly green) oolong, more complex than plain green. 0% oxidised is green, 100% is black, oolong is everything in between.
Kitchen tissue is strong when wet. Tear that square sheet in half lengthwise (because of oriented fibers), fold each half once, and you’ll have reasonably sized pieces.