Is it bad to drink energy drinks daily?

Potentially yes: Firstly, if you do not have adequate energy to perform your daily tasks, it is likely that there is something else wrong - diet, exercise, other health problems, and that the way to fix that is to fix that. Secondly, they are mostly caffeine, and excessive caffeine is not good for us, and can cause anxiety, raise blood pressure and pulse, cause insomnia. Very high doses can cause serious harm.