Yes, but watch out different black teas have different caffeine content unfortunately the only way to know is to try a regular cup first. English breakfast usually has high caffeine content (I even experienced tunnel vision from too making it strong), the cheap black tea I drink now seems to have low caffeine content :) There is also english afternoon tea or something like that, it has lower caffeine. I drink loose leaf teas, so I can control the strength, I don't like bag ones.

brewing my own coffee

That's what we call turkish coffee here, ^^