Figure out where insects traditionally gather. You may be able to avoid dealing with them while you're in the great outdoors. While bugs can be present anywhere, they generally surround bodies of stagnant water. When camping in warm, moist climates, you'll definitely want to avoid still pools and lakes.  A campsite on higher ground is advisable when searching for a spot. Pitching your tent on a hillside is advisable. Avoiding low, flat areas will distance you from any large stagnant bodies of water. Stick to higher ground, even if your area is fairly dry. Any rainfall, even if it is minimal, will attract more bugs to your area. When using a traditional tent without as much protection from the elements, bugs can fly into your shelter with a bit more ease. A waterproof tent, while more expensive, does a great job keeping bugs out. This will eliminate the number of bites that you will get while sleeping. Waterproof tents, while thicker, have more breathability than a traditional tent. This means you won't notice the larger area of protection that surrounds them. Fresh air will flow in and out easily. In addition to a waterproof tent, you may want to invest in preventative bug netting. These netting systems are great for protecting against bug bites during the day. These will fit nicely around a hammock. You'll be able to rest easily while napping.  You can try a free-standing mosquito net. They are basically small tents, held together by metal or plastic frames that can be easily put away. You fit them nicely into a larger tent so that once you zip up the outside of the primary tent, you won't let bugs in. If you aren't camping with a tent, you can use a wedge mosquito net. The net hangs from two suspension points, draping over the sleeping bag or cot that you've brought to the outdoors. This brand of net is easy to set up and quite inexpensive. Be sure that you're using a product that's safe for your skin, as certain repellents are made for the air. Choosing products with the active ingredients DEET or...

TL;DR in Indonesian:
Pilihlah tempat berkemah di area yang bebas serangga. Belilah tenda tahan air. Belilah kelambu. Oleskan krim penolak serangga sebelum tidur. Bakarlah sage. Tutuplah tubuh rapat-rapat.