How many teas/coffees do you have a day?

I’ve started to have more teas/coffees a day and I’m honestly not too sure how many is normal…

Usually have a coffee when I first get to work at 9am, a tea at around 11am, then another tea or herbal tea between 12pm/1pm and then another coffee at 3/4pm to try beat the afternoon lull. Is this a normal amount?