This problem is two-sided. If your strength is really achieved, but you don't have a certificate or proof, you can step in. Other things are better to be realistic, because if you speak so well now and can't do anything at work, that's not good. Also, if you think the job you want to apply for is within your ability, but the requirements of the company are very high, you can exaggerate it appropriately. Because you don't exaggerate, others exaggerate, and you are eliminated. In fact, the mastermind of this result is the recruitment company itself. You just have to live up to yourself and meet the requirements of the company!