Water.
I’m going through an 8L water bottle and more a day without caffeine. At most during my heavy stimulant days was 4L tops a day.
Not complaining though, I love water, so refreshing 
Other than that, is the internal landscape - your state of mind. Switch between subliminals and notice your where your mind and heart are. Your thoughts and opinions and emotions. Another thing is the reaction of others towards you. On some subliminals, others are spazing out when I’m around, while some others they’re not and seen to somehow be acting as a channel from the universe to deliver information and opportunitiesm or simply a de-stressors.