BAD IDEA
How many teas should I drink to start speaking fluent English?
Drinking tea won't make you fluent; unless your accent coach is a teapot, it's useless.
No amount of tea will suddenly flip a switch and make you speak English fluently. Language skills come from practice, study, and actually speaking—not gulping herbal infusions. If you want to sound fluent, skip the tea rites and hit the books or chat with real people instead.