Here are some instructions for you,
if it so happens that you are in the jungle:
First of all, you should use mosquito repellent cream;
Second, you should find a place, where you are going to stay.
Third, you should make а tent and a bed.
Then, you must look for some animal to kill or for some other edible things.
After that you must make a fire for cooking food, keeping yourself warm and for keeping the wild animals away.
Note: to find water you should look for animals' paths and follow them:
wild animal paths usually lead to some water sources.