People that are very emotional can draw you into their drama and make it difficult to be totally emotionless. You don't need to cut anyone out of your life completely, but you may want to limit your contact with your more emotional friends. If you are out and run into an emotional friend of yours, always have an excuse ready to help you slip away without being rude. Simply tell them you have to go return some videos or something along those lines. A big part of looking emotionless is to not let anything bother you. Once you come to realize that you didn't have the power to change most of the things anyway, they might not bother you so much. If you can give up trying to control things that happen, you will have an easier time accepting it when things don't go as expected. Watching violent television shows or movies is the way most people desensitize themselves. While this is often debated as being harmful, evidence shows that watching violent shows can make viewers apathetic to human pain and suffering. If you are hoping to avoid being affected by those kinds of emotions, try watching more television. It may sound silly but looking at money tends to make people act more businesslike. Scientists have found evidence that looking at money makes us less likely to approve of outward displays of emotion or to use emotional words to express our thoughts. No matter how good you get at keeping everything inside, sometimes you will need to release all the emotions. Writing or playing music is a good way to get out emotional pressures, while other people may find getting out their frustrations by kickboxing works better. It doesn't matter what activity you choose as long as you can release any anxiety you have on your own terms instead of having a sudden meltdown in front of everyone.

How would you rephrase that briefly using Indonesian?
Jangan terlalu sering bergaul dengan orang-orang yang emosional. Belajarlah untuk menerima keadaan. Buat diri menjadi tidak sensitif. Pandang uang dengan lebih sering. Carilah pelampiasan untuk emosi Anda.