Two monster a day, am I fine?

Drinking two zero sugar monster every day. Working out 4-5 times a week and have a pretty good diet. Other drinks I drink are like 0.75l water, a bit of milk and if I’m thirsty a bit of Diet Coke

With all that im below the daily max of caffeine and taurin, I just have to much vitamins because of the monster which is fine I guess. Still most people say 2 monsters are way too much? Is it?