What should you pay attention to when making RJ-45 568B crystal head? Please give me some advice

The stupid way is that you only connect four wires, peel off more of the four wires, pick four wires at random, insert them into 1 2 3 6 of the crystal head, and press the other end according to the one you picked. Plug the four colored cables into 1, 2, 3, 6, and the color order at both ends is the same. In this way, one network cable can connect two computers, and it saves money. This is what I did, and the success rate is 99%, haha