Save caffeine for your worst days, I found it's quite easy to build a tolerance for it (albeit idk how it affects you). Eventually you'll be drinking energy drinks just to stay awake, and god knows how bad that is for you to do multiple times a day.
I prefer coffee for the busy days and energy drinks for when I need a kick asap. "Natural options" (coffee or tea) tend to make me feel satiated from food and feel comfy, while the "artificial options" make me feel upbeat and energized a bit more. Play with these two categories of caffeine, see what works for you.