@Elliandre, yah, I added energy gain to all of the drinks that should have caffeine so they give an energy boost and can adjust how much as desired. It's a pretty straightforward tuning edit using Sims 4 Studio.
There's a similiar mod available by Simularity
here which also increases the energy that coffee provides as well as adding it to teas, energy drinks, soda, etc.
The only reason I did my own is because that mod missed a couple of the teas and because it gives a flat rate energy gain that is the same for all of the drinks and I wanted it to be different (i.e. green tea has less energy gain then black tea, etc.)