@HaroutX Just got the medium badge for Oceania, you have to keep doing main quests (in the Journal they're the Orange tabs, sometimes you need to scroll down with the arrow to find them) there's one for building a campfire that gives +1 max energy, and finishing the Simple Well gives the other +1 max energy.
 "Oceania"){kind=icon}
 "Incremental Cubes"){kind=icon}