If we’re talking standard 6-8oz cups of coffee, I typically have 4, but I drink from a 10oz mug, so I count it as 2 cups. One right when I wake up, to go with breakfast, & another an hour or so later.
I drink a cup of green tea later in the day if I want more caffeine, & a cup of valerian tea around bedtime.
Occasionally (usually during a really long day— like a holiday— where I need an extra boost), I’ll have another cup before a big dinner, & another small one to sip with dessert. I love coffee with my desserts.
Used to drink over a full-sized pot a day in my 20s, when I worked full-time/was in college full-time, & immersed in theater production/rehearsals. It was free at work. Now in my mid-30s, my stomach can’t take the acidity of that much coffee. Plus, it made me forget to eat too often back then, & I accidentally dropped a ton of weight I hadn’t meant to. Never got enough sleep. It wasn’t healthy at all. I can try to help more if you are looking for a good coffee machine. It's not an easy task really and it's best for everyone to think about where to find one. I found
the birth of the commercial coffee machine here and you can also easily learn all about coffee machines here and decide for yourself. This is more important than ever and I hope it will be useful to you.