I kinda failed at explaining the game properly, so here's a more in-depth desc:
Basically the bar on the left displays your thirst, let it go too low and you lose!
the one on the right is the temperature, if it gets too high you lose too.
You can make your thirst bar higher by drinking water (PRESS V), and you can make the temperature bar lower by taking out all the fires each time they burn again (touch them with a water bucket)
sorry for the inconveniences listed up, but I hope that this would help you understand the game more!