You should bring (more specifically): toothbrush, toothpaste, shampoo, comb, slippers and towel. If it's a full set of skin care products for girls, you'd better bring a sample, otherwise it's too heavy, and bring more pairs of socks and underwear (maybe you don't have time to wash them, or you can't do them overnight), sports shoes and sweatpants (you'd better wear one set, because clothes will definitely get dirty during military training. When training in the factory, you can bring your own set of clean pens and notebooks (you need to write all kinds of experiences and summaries), some delicious food (the military and civilian service agency there may disappoint you), enough tissues and roll paper, an extra battery (for fear that you have time to recharge) and a small piece of soap (if you wash your hands with facial cleanser).
That's all I can think of. If you think that before you get into trouble, you should bring disposable toothbrushes, slippers, soap combs and the like when staying in a hotel. Things are always better than things. I don't know who you are. It is generally necessary to bring an apple to the army here, so let the instructor bring it back from outside. You can't run if you want. The army eats well. Don't worry about cooking four dishes and one soup.