You want to be comfortable, but not so comfortable that you lose focus or fall asleep. (Your bed’s not the greatest option for homework, it turns out.) You also need adequate workspace to spread out.  Find a desk or table with a top that rests somewhere between your waist and ribcage when you sit at it, so that your elbows can rest easily upon it without having to hunch your shoulders forward. You also want to be able to rest your feet flat on the ground.  Use a comfortable chair that fits the height of the desk / table. You may want to skip the fancier desk chairs that rotate, roll, recline, lift, etc., if these will only become distractions.     If you are using a computer, you want enough space to place it about 1 ½ to 2 ½ feet away from you. A study area that is too dark will not only make it easier to nod off, it can exacerbate eye strain, which will put a damper on any study session. Harsh lighting, such as fluorescent light, can be bad for your eyes too. Use a desk lamp to focus light on your workspace, and also a nearby table or overhead light to brighten the area. If natural light is available, certainly make use of it. Be aware, though, that while the natural light provided by a window can be refreshing and calming, the temptation to stare out the window may hamper your studying. Consider draperies or translucent blinds, or face away from the window. Make sure you have all the materials you need for studying close at hand, so you don’t waste time fumbling around for a ruler or pencil lead refills.  Keep classic school supplies like pens or pencils, erasers, paper, notecards, highlighters, and so on in assigned areas on the desk or in a handy drawer. Keep a traditional pocket dictionary, thesaurus, and calculator nearby, even though your phone can probably do the jobs of all three. Using your phone to do long division or spell-check is an open invitation to distraction by the million other things you can do on it. Make use of the desk drawers to keep things you need close by but not spread out all...

How would you rephrase that briefly using Indonesian?
Temukan meja belajar (atau meja biasa) dan kursi yang bagus. Pastikan pencahayaan memadai. Kumpulkan perlengkapan. Jagalah agar keadaan tetap teratur. Rapikan juga berkas komputer Anda. Pertimbangkan menaruh jam.